github - ghsa-vhv4-fh94-jm5x

GHSA-VHV4-FH94-JM5X

Vulnerability from github – Published: 2025-03-14 19:54 – Updated: 2025-03-14 21:41

Summary

JS Html Sanitizer allows XSS when used with contentEditable

Details

Impact

XSS vulnerability when the sanitizer is used with a contentEditable element to set the elements innerHTML to a sanitized string produced by the package. If the code is particularly crafted to abuse the code beautifier, that runs AFTER sanitation.

Patches

Patched in version 2.0.3

Severity ?

6.9 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

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JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "@jitbit/htmlsanitizer"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.0.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-29771"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-03-14T19:54:52Z",
    "nvd_published_at": "2025-03-14T19:15:48Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\nXSS vulnerability when the sanitizer is used with a `contentEditable` element to set the elements `innerHTML` to a sanitized string produced by the package. If the code is particularly crafted to abuse the code beautifier, that runs AFTER sanitation.\n\n### Patches\nPatched in version 2.0.3",
  "id": "GHSA-vhv4-fh94-jm5x",
  "modified": "2025-03-14T21:41:26Z",
  "published": "2025-03-14T19:54:52Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/jitbit/HtmlSanitizer/security/advisories/GHSA-vhv4-fh94-jm5x"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-29771"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jitbit/HtmlSanitizer/commit/af6d2a78877e7277cd01c825b7fb50edb5956963"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/jitbit/HtmlSanitizer"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "JS Html Sanitizer allows XSS when used with contentEditable"
}

CVE-2025-29771 (GCVE-0-2025-29771)

Vulnerability from cvelistv5 – Published: 2025-03-14 18:56 – Updated: 2025-03-18 14:26

Title

HtmlSanitizer vulnerable to XSS when used with contentEditable

Summary

HtmlSanitizer is a client-side HTML Sanitizer. Versions prior to 2.0.3 have a cross-site scripting vulnerability when the sanitizer is used with a `contentEditable` element to set the elements `innerHTML` to a sanitized string produced by the package. If the code is particularly crafted to abuse the code beautifier, that runs AFTER sanitation. The issue is patched in version 2.0.3.

Severity ?

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M

References

URL

Tags

	https://github.com/jitbit/HtmlSanitizer/security/…	x_refsource_CONFIRM
	https://github.com/jitbit/HtmlSanitizer/commit/af…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	jitbit	HtmlSanitizer	Affected: < 2.0.3

Show details on NVD website

JSON

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{
  "containers": {
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        "metrics": [
          {
            "other": {
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                "id": "CVE-2025-29771",
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                  },
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-03-18T14:25:51.723087Z",
                "version": "2.0.3"
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        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
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            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
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            "userInteraction": "PASSIVE",
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            "vulnAvailabilityImpact": "NONE",
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      "providerMetadata": {
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          "name": "https://github.com/jitbit/HtmlSanitizer/security/advisories/GHSA-vhv4-fh94-jm5x",
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    "dateReserved": "2025-03-11T14:23:00.474Z",
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

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