Vulnerability-Lookup

CVE-2022-31103 (GCVE-0-2022-31103)

Vulnerability from cvelistv5 – Published: 2022-06-27 22:20 – Updated: 2025-04-23 18:06

Title

Improper handling of CSS at-rules in lettersanitizer

Summary

lettersanitizer is a DOM-based HTML email sanitizer for in-browser email rendering. All versions of lettersanitizer below 1.0.2 are affected by a denial of service issue when processing a CSS at-rule `@keyframes`. This package is depended on by [react-letter](https://github.com/mat-sz/react-letter), therefore everyone using react-letter is also at risk. The problem has been patched in version 1.0.2.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-23 15:53 UTC

CWE

CWE-754 - Improper Check for Unusual or Exceptional Conditions

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/mat-sz/lettersanitizer/securit…	x_refsource_CONFIRM
https://github.com/mat-sz/react-letter/issues/17	x_refsource_MISC
https://github.com/mat-sz/lettersanitizer/commit/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
mat-sz	lettersanitizer	Affected: < 1.0.2	guessed

Show details on NVD website

JSON

To clipboard

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The problem has been patched in version 1.0.2.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-754\", \"description\": \"CWE-754: Improper Check for Unusual or Exceptional Conditions\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2022-06-27T22:20:15.000Z\"}, \"x_legacyV4Record\": {\"impact\": {\"cvss\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}, \"source\": {\"advisory\": \"GHSA-7r3r-gq8p-v9jj\", \"discovery\": \"UNKNOWN\"}, \"affects\": {\"vendor\": {\"vendor_data\": [{\"product\": {\"product_data\": [{\"version\": {\"version_data\": [{\"version_value\": \"\u003c 1.0.2\"}]}, \"product_name\": \"lettersanitizer\"}]}, \"vendor_name\": \"mat-sz\"}]}}, \"data_type\": \"CVE\", \"references\": {\"reference_data\": [{\"url\": \"https://github.com/mat-sz/lettersanitizer/security/advisories/GHSA-7r3r-gq8p-v9jj\", \"name\": \"https://github.com/mat-sz/lettersanitizer/security/advisories/GHSA-7r3r-gq8p-v9jj\", \"refsource\": \"CONFIRM\"}, {\"url\": \"https://github.com/mat-sz/react-letter/issues/17\", \"name\": \"https://github.com/mat-sz/react-letter/issues/17\", \"refsource\": \"MISC\"}, {\"url\": \"https://github.com/mat-sz/lettersanitizer/commit/96d3dfe2ef0465d47324ed4d13e91ba0816a173f\", \"name\": \"https://github.com/mat-sz/lettersanitizer/commit/96d3dfe2ef0465d47324ed4d13e91ba0816a173f\", \"refsource\": \"MISC\"}]}, \"data_format\": \"MITRE\", \"description\": {\"description_data\": [{\"lang\": \"eng\", \"value\": \"lettersanitizer is a DOM-based HTML email sanitizer for in-browser email rendering. 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      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}

CNVD-2022-62177

Vulnerability from cnvd - Published: 2022-09-09

Title

lettersanitizer拒绝服务漏洞

Description

lettersanitizer是一个用于浏览器内电子邮件呈现的基于DOM的HTML电子邮件清理程序。 lettersanitizer 1.0.2之前版本存在拒绝服务漏洞。该漏洞源于未对输入的错误消息做正确的处理，攻击者可利用该漏洞造成应用拒绝服务。

Severity

中

Patch Name

lettersanitizer拒绝服务漏洞的补丁

Patch Description

lettersanitizer是一个用于浏览器内电子邮件呈现的基于DOM的HTML电子邮件清理程序。 lettersanitizer 1.0.2之前版本存在拒绝服务漏洞。该漏洞源于未对输入的错误消息做正确的处理，攻击者可利用该漏洞造成应用拒绝服务。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://github.com/mat-sz/lettersanitizer/security/advisories/GHSA-7r3r-gq8p-v9jj

Reference

https://github.com/mat-sz/react-letter/issues/17

Impacted products

Name
lettersanitizer lettersanitizer <1.0.2

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2022-31103",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2022-31103"
    }
  },
  "description": "lettersanitizer\u662f\u4e00\u4e2a\u7528\u4e8e\u6d4f\u89c8\u5668\u5185\u7535\u5b50\u90ae\u4ef6\u5448\u73b0\u7684\u57fa\u4e8eDOM\u7684HTML\u7535\u5b50\u90ae\u4ef6\u6e05\u7406\u7a0b\u5e8f\u3002\n\nlettersanitizer 1.0.2\u4e4b\u524d\u7248\u672c\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u672a\u5bf9\u8f93\u5165\u7684\u9519\u8bef\u6d88\u606f\u505a\u6b63\u786e\u7684\u5904\u7406\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u5e94\u7528\u62d2\u7edd\u670d\u52a1\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/mat-sz/lettersanitizer/security/advisories/GHSA-7r3r-gq8p-v9jj",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-62177",
  "openTime": "2022-09-09",
  "patchDescription": "lettersanitizer\u662f\u4e00\u4e2a\u7528\u4e8e\u6d4f\u89c8\u5668\u5185\u7535\u5b50\u90ae\u4ef6\u5448\u73b0\u7684\u57fa\u4e8eDOM\u7684HTML\u7535\u5b50\u90ae\u4ef6\u6e05\u7406\u7a0b\u5e8f\u3002\r\n\r\nlettersanitizer 1.0.2\u4e4b\u524d\u7248\u672c\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u672a\u5bf9\u8f93\u5165\u7684\u9519\u8bef\u6d88\u606f\u505a\u6b63\u786e\u7684\u5904\u7406\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u5e94\u7528\u62d2\u7edd\u670d\u52a1\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "lettersanitizer\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "lettersanitizer lettersanitizer \u003c1.0.2"
  },
  "referenceLink": "https://github.com/mat-sz/react-letter/issues/17",
  "serverity": "\u4e2d",
  "submitTime": "2022-06-30",
  "title": "lettersanitizer\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

FKIE_CVE-2022-31103

Vulnerability from fkie_nvd - Published: 2022-06-27 23:15 - Updated: 2026-06-17 04:44

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

References

URL	Tags
security-advisories@github.com	https://github.com/mat-sz/lettersanitizer/commit/96d3dfe2ef0465d47324ed4d13e91ba0816a173f	Patch, Third Party Advisory
security-advisories@github.com	https://github.com/mat-sz/lettersanitizer/security/advisories/GHSA-7r3r-gq8p-v9jj	Third Party Advisory
security-advisories@github.com	https://github.com/mat-sz/react-letter/issues/17	Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/mat-sz/lettersanitizer/commit/96d3dfe2ef0465d47324ed4d13e91ba0816a173f	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/mat-sz/lettersanitizer/security/advisories/GHSA-7r3r-gq8p-v9jj	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/mat-sz/react-letter/issues/17	Issue Tracking, Third Party Advisory

Impacted products

	Vendor	Product	Version
	lettersanitizer_project	lettersanitizer	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "lettersanitizer",
          "vendor": "mat-sz",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.0.2"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:lettersanitizer_project:lettersanitizer:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "7996CE4F-0FF7-4D5F-A65D-99A97283CE50",
              "versionEndExcluding": "1.0.2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "lettersanitizer is a DOM-based HTML email sanitizer for in-browser email rendering. All versions of lettersanitizer below 1.0.2 are affected by a denial of service issue when processing a CSS at-rule `@keyframes`. This package is depended on by [react-letter](https://github.com/mat-sz/react-letter), therefore everyone using react-letter is also at risk. The problem has been patched in version 1.0.2."
    },
    {
      "lang": "es",
      "value": "lettersanitizer es un saneador de correo electr\u00f3nico HTML basado en el DOM para la representaci\u00f3n del correo electr\u00f3nico en el navegador. Todas las versiones de lettersanitizer anteriores a 1.0.2, est\u00e1n afectadas por un problema de denegaci\u00f3n de servicio cuando es procesada una regla CSS \"@keyframes\". Este paquete depende de [react-letter](https://github.com/mat-sz/react-letter), por lo que todos usando react-letter tambi\u00e9n est\u00e1n en riesgo. El problema ha sido parcheado en versi\u00f3n 1.0.2"
    }
  ],
  "id": "CVE-2022-31103",
  "lastModified": "2026-06-17T04:44:48.233",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-31103",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-04-23T15:53:47.540917Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2022-06-27T23:15:08.170",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/mat-sz/lettersanitizer/commit/96d3dfe2ef0465d47324ed4d13e91ba0816a173f"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/mat-sz/lettersanitizer/security/advisories/GHSA-7r3r-gq8p-v9jj"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Issue Tracking",
        "Third Party Advisory"
      ],
      "url": "https://github.com/mat-sz/react-letter/issues/17"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/mat-sz/lettersanitizer/commit/96d3dfe2ef0465d47324ed4d13e91ba0816a173f"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/mat-sz/lettersanitizer/security/advisories/GHSA-7r3r-gq8p-v9jj"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Issue Tracking",
        "Third Party Advisory"
      ],
      "url": "https://github.com/mat-sz/react-letter/issues/17"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-754"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

GHSA-7R3R-GQ8P-V9JJ

Vulnerability from github – Published: 2022-06-23 17:48 – Updated: 2022-07-07 17:15

Summary

Improper handling of CSS at-rules in lettersanitizer

Details

Impact

All versions of lettersanitizer below 1.0.2 are affected by a denial of service issue when processing a CSS at-rule @keyframes.

This package is depended on by react-letter, therefore everyone using react-letter is also at risk.

Patches

The problem has been patched in version 1.0.2.

Workarounds

There is no workaround besides upgrading.

References

The issue was originally reported in the react-letter repository: https://github.com/mat-sz/react-letter/issues/17

For more information

If you have any questions or comments about this advisory: * Open an issue in lettersanitizer * Email me at contact@matsz.dev

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "lettersanitizer"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-31103"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-754"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-06-23T17:48:19Z",
    "nvd_published_at": "2022-06-27T23:15:00Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n\nAll versions of lettersanitizer below 1.0.2 are affected by a denial of service issue when processing a CSS at-rule `@keyframes`.\n\nThis package is depended on by [react-letter](https://github.com/mat-sz/react-letter), therefore everyone using react-letter is also at risk.\n\n### Patches\n\nThe problem has been patched in version 1.0.2.\n\n### Workarounds\n\nThere is no workaround besides upgrading.\n\n### References\n\nThe issue was originally reported in the react-letter repository: https://github.com/mat-sz/react-letter/issues/17\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [lettersanitizer](https://github.com/mat-sz/lettersanitizer/issues)\n* Email me at [contact@matsz.dev](mailto:contact@matsz.dev)\n",
  "id": "GHSA-7r3r-gq8p-v9jj",
  "modified": "2022-07-07T17:15:28Z",
  "published": "2022-06-23T17:48:19Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/mat-sz/lettersanitizer/security/advisories/GHSA-7r3r-gq8p-v9jj"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-31103"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mat-sz/react-letter/issues/17"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mat-sz/lettersanitizer/commit/96d3dfe2ef0465d47324ed4d13e91ba0816a173f"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/mat-sz/lettersanitizer"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Improper handling of CSS at-rules in lettersanitizer"
}

GSD-2022-31103

Vulnerability from gsd - Updated: 2023-12-13 01:19

Details

Aliases

CVE-2022-31103

Aliases

CVE-2022-31103

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2022-31103",
    "description": "lettersanitizer is a DOM-based HTML email sanitizer for in-browser email rendering. All versions of lettersanitizer below 1.0.2 are affected by a denial of service issue when processing a CSS at-rule `@keyframes`. This package is depended on by [react-letter](https://github.com/mat-sz/react-letter), therefore everyone using react-letter is also at risk. The problem has been patched in version 1.0.2.",
    "id": "GSD-2022-31103"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2022-31103"
      ],
      "details": "lettersanitizer is a DOM-based HTML email sanitizer for in-browser email rendering. All versions of lettersanitizer below 1.0.2 are affected by a denial of service issue when processing a CSS at-rule `@keyframes`. This package is depended on by [react-letter](https://github.com/mat-sz/react-letter), therefore everyone using react-letter is also at risk. The problem has been patched in version 1.0.2.",
      "id": "GSD-2022-31103",
      "modified": "2023-12-13T01:19:18.126610Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2022-31103",
        "STATE": "PUBLIC",
        "TITLE": "Improper handling of CSS at-rules in lettersanitizer"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "lettersanitizer",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "\u003c 1.0.2"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "mat-sz"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "lettersanitizer is a DOM-based HTML email sanitizer for in-browser email rendering. All versions of lettersanitizer below 1.0.2 are affected by a denial of service issue when processing a CSS at-rule `@keyframes`. This package is depended on by [react-letter](https://github.com/mat-sz/react-letter), therefore everyone using react-letter is also at risk. The problem has been patched in version 1.0.2."
          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-754: Improper Check for Unusual or Exceptional Conditions"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/mat-sz/lettersanitizer/security/advisories/GHSA-7r3r-gq8p-v9jj",
            "refsource": "CONFIRM",
            "url": "https://github.com/mat-sz/lettersanitizer/security/advisories/GHSA-7r3r-gq8p-v9jj"
          },
          {
            "name": "https://github.com/mat-sz/react-letter/issues/17",
            "refsource": "MISC",
            "url": "https://github.com/mat-sz/react-letter/issues/17"
          },
          {
            "name": "https://github.com/mat-sz/lettersanitizer/commit/96d3dfe2ef0465d47324ed4d13e91ba0816a173f",
            "refsource": "MISC",
            "url": "https://github.com/mat-sz/lettersanitizer/commit/96d3dfe2ef0465d47324ed4d13e91ba0816a173f"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-7r3r-gq8p-v9jj",
        "discovery": "UNKNOWN"
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c1.0.2",
          "affected_versions": "All versions before 1.0.2",
          "cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-754",
            "CWE-937"
          ],
          "date": "2022-07-06",
          "description": "lettersanitizer is a DOM-based HTML email sanitizer for in-browser email rendering. All versions of lettersanitizer below 1.0.2 are affected by a denial of service issue when processing a CSS at-rule `@keyframes`. This package is depended on by [react-letter](https://github.com/mat-sz/react-letter), therefore everyone using react-letter is also at risk. The problem has been patched in version 1.0.2.",
          "fixed_versions": [
            "1.0.2"
          ],
          "identifier": "CVE-2022-31103",
          "identifiers": [
            "CVE-2022-31103",
            "GHSA-7r3r-gq8p-v9jj",
            "GMS-2022-2606"
          ],
          "not_impacted": "All versions starting from 1.0.2",
          "package_slug": "npm/lettersanitizer",
          "pubdate": "2022-06-27",
          "solution": "Upgrade to version 1.0.2 or above.",
          "title": "Improper Check for Unusual or Exceptional Conditions",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2022-31103",
            "https://github.com/mat-sz/react-letter/issues/17",
            "https://github.com/mat-sz/lettersanitizer/security/advisories/GHSA-7r3r-gq8p-v9jj",
            "https://github.com/mat-sz/lettersanitizer/commit/96d3dfe2ef0465d47324ed4d13e91ba0816a173f",
            "https://github.com/advisories/GHSA-7r3r-gq8p-v9jj"
          ],
          "uuid": "649f8080-2b17-452d-9a9b-6f2f9b8686e3"
        },
        {
          "affected_range": "\u003c0",
          "affected_versions": "All versions before 1.0.2",
          "cwe_ids": [
            "CWE-1035",
            "CWE-937"
          ],
          "date": "2022-06-23",
          "description": "### Impact\n\nAll versions of lettersanitizer below 1.0.2 are affected by a denial of service issue when processing a CSS at-rule `@keyframes`.\n\nThis package is depended on by [react-letter](https://github.com/mat-sz/react-letter), therefore everyone using react-letter is also at risk.\n\n### Patches\n\nThe problem has been patched in version 1.0.2.\n\n### Workarounds\n\nThere is no workaround besides upgrading.\n\n### References\n\nThe issue was originally reported in the react-letter repository: https://github.com/mat-sz/react-letter/issues/17\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [lettersanitizer](https://github.com/mat-sz/lettersanitizer/issues)\n* Email me at [contact@matsz.dev](mailto:contact@matsz.dev)\n",
          "fixed_versions": [
            "1.0.2"
          ],
          "identifier": "GMS-2022-2606",
          "identifiers": [
            "GHSA-7r3r-gq8p-v9jj",
            "GMS-2022-2606",
            "CVE-2022-31103"
          ],
          "not_impacted": "All versions starting from 1.0.2",
          "package_slug": "npm/lettersanitizer",
          "pubdate": "2022-06-23",
          "solution": "Upgrade to version 1.0.2 or above.",
          "title": "Duplicate of ./npm/lettersanitizer/CVE-2022-31103.yml",
          "urls": [
            "https://github.com/mat-sz/lettersanitizer/security/advisories/GHSA-7r3r-gq8p-v9jj",
            "https://github.com/mat-sz/react-letter/issues/17",
            "https://github.com/mat-sz/lettersanitizer/commit/96d3dfe2ef0465d47324ed4d13e91ba0816a173f",
            "https://github.com/advisories/GHSA-7r3r-gq8p-v9jj"
          ],
          "uuid": "d77b6652-498e-45ef-92cd-6e4c140bf5c4"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:lettersanitizer_project:lettersanitizer:*:*:*:*:*:node.js:*:*",
                "cpe_name": [],
                "versionEndExcluding": "1.0.2",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2022-31103"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "lettersanitizer is a DOM-based HTML email sanitizer for in-browser email rendering. All versions of lettersanitizer below 1.0.2 are affected by a denial of service issue when processing a CSS at-rule `@keyframes`. This package is depended on by [react-letter](https://github.com/mat-sz/react-letter), therefore everyone using react-letter is also at risk. The problem has been patched in version 1.0.2."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-754"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/mat-sz/react-letter/issues/17",
              "refsource": "MISC",
              "tags": [
                "Issue Tracking",
                "Third Party Advisory"
              ],
              "url": "https://github.com/mat-sz/react-letter/issues/17"
            },
            {
              "name": "https://github.com/mat-sz/lettersanitizer/security/advisories/GHSA-7r3r-gq8p-v9jj",
              "refsource": "CONFIRM",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://github.com/mat-sz/lettersanitizer/security/advisories/GHSA-7r3r-gq8p-v9jj"
            },
            {
              "name": "https://github.com/mat-sz/lettersanitizer/commit/96d3dfe2ef0465d47324ed4d13e91ba0816a173f",
              "refsource": "MISC",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://github.com/mat-sz/lettersanitizer/commit/96d3dfe2ef0465d47324ed4d13e91ba0816a173f"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2022-07-06T19:34Z",
      "publishedDate": "2022-06-27T23:15Z"
    }
  }
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2022-31103 (GCVE-0-2022-31103)

CNVD-2022-62177

FKIE_CVE-2022-31103

GHSA-7R3R-GQ8P-V9JJ

Impact

Patches

Workarounds

References

For more information

GSD-2022-31103

Tags

Sightings

Nomenclature

Related by attack behaviour