Vulnerability-Lookup

CNVD-2022-88818

Vulnerability from cnvd - Published: 2022-12-23

Title

Express XSS Sanitizer原型污染漏洞

Description

Express XSS Sanitizer是AhmedAdelFahim个人开发者的用于清理用户输入数据（在req.body、req.query、req.headers和req.params中）以防止跨站脚本 (XSS) 攻击。 Express XSS Sanitizer 1.1.3之前的版本存在原型污染漏洞，该漏洞源于express-xss-sanitizer容易通过allowedTags属性受到原型污染，攻击者可利用漏洞绕过xss过滤。

Severity

中

Patch Name

Express XSS Sanitizer原型污染漏洞的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://github.com/AhmedAdelFahim/express-xss-sanitizer/commit/3bf8aaaf4dbb1c209dcb8d87a82711a54c1ab39a

Reference

https://github.com/AhmedAdelFahim/express-xss-sanitizer/commit/3bf8aaaf4dbb1c209dcb8d87a82711a54c1ab39a

Impacted products

Name
AhmedAdelFahim Express XSS Sanitizer <1.1.3

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2022-21169",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2022-21169"
    }
  },
  "description": "Express XSS Sanitizer\u662fAhmedAdelFahim\u4e2a\u4eba\u5f00\u53d1\u8005\u7684\u7528\u4e8e\u6e05\u7406\u7528\u6237\u8f93\u5165\u6570\u636e\uff08\u5728req.body\u3001req.query\u3001req.headers\u548creq.params\u4e2d\uff09\u4ee5\u9632\u6b62\u8de8\u7ad9\u811a\u672c (XSS) \u653b\u51fb\u3002\n\nExpress XSS Sanitizer 1.1.3\u4e4b\u524d\u7684\u7248\u672c\u5b58\u5728\u539f\u578b\u6c61\u67d3\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eexpress-xss-sanitizer\u5bb9\u6613\u901a\u8fc7allowedTags\u5c5e\u6027\u53d7\u5230\u539f\u578b\u6c61\u67d3\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u7ed5\u8fc7xss\u8fc7\u6ee4\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://github.com/AhmedAdelFahim/express-xss-sanitizer/commit/3bf8aaaf4dbb1c209dcb8d87a82711a54c1ab39a",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-88818",
  "openTime": "2022-12-23",
  "patchDescription": "Express XSS Sanitizer\u662fAhmedAdelFahim\u4e2a\u4eba\u5f00\u53d1\u8005\u7684\u7528\u4e8e\u6e05\u7406\u7528\u6237\u8f93\u5165\u6570\u636e\uff08\u5728req.body\u3001req.query\u3001req.headers\u548creq.params\u4e2d\uff09\u4ee5\u9632\u6b62\u8de8\u7ad9\u811a\u672c (XSS) \u653b\u51fb\u3002\r\n\r\nExpress XSS Sanitizer 1.1.3\u4e4b\u524d\u7684\u7248\u672c\u5b58\u5728\u539f\u578b\u6c61\u67d3\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eexpress-xss-sanitizer\u5bb9\u6613\u901a\u8fc7allowedTags\u5c5e\u6027\u53d7\u5230\u539f\u578b\u6c61\u67d3\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u7ed5\u8fc7xss\u8fc7\u6ee4\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": "Express XSS Sanitizer\u539f\u578b\u6c61\u67d3\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "AhmedAdelFahim Express XSS Sanitizer \u003c1.1.3"
  },
  "referenceLink": "https://github.com/AhmedAdelFahim/express-xss-sanitizer/commit/3bf8aaaf4dbb1c209dcb8d87a82711a54c1ab39a",
  "serverity": "\u4e2d",
  "submitTime": "2022-09-28",
  "title": "Express XSS Sanitizer\u539f\u578b\u6c61\u67d3\u6f0f\u6d1e"
}

CVE-2022-21169 (GCVE-0-2022-21169)

Vulnerability from cvelistv5 – Published: 2022-09-26 05:05 – Updated: 2025-05-21 20:29

Title

Prototype Pollution

Summary

The package express-xss-sanitizer before 1.1.3 are vulnerable to Prototype Pollution via the allowedTags attribute, allowing the attacker to bypass xss sanitization.

Severity

7.3 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-05-21 20:29 UTC

CWE

Prototype Pollution
CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Assigner

snyk mitre root

References

4 references

URL	Tags
https://security.snyk.io/vuln/SNYK-JS-EXPRESSXSSS…	x_refsource_MISC
https://github.com/AhmedAdelFahim/express-xss-san…	x_refsource_MISC
https://runkit.com/embed/w306l6zfm7tu	x_refsource_MISC
https://github.com/AhmedAdelFahim/express-xss-san…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	express-xss-sanitizer	Affected: unspecified , < 1.1.3 (custom)

Date Public

2022-09-26 00:00

Credits

Jayateertha Guruprasad

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T02:31:59.240Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://security.snyk.io/vuln/SNYK-JS-EXPRESSXSSSANITIZER-3027443"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/AhmedAdelFahim/express-xss-sanitizer/issues/4"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://runkit.com/embed/w306l6zfm7tu"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/AhmedAdelFahim/express-xss-sanitizer/commit/3bf8aaaf4dbb1c209dcb8d87a82711a54c1ab39a"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-21169",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-05-21T20:29:10.261035Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-1321",
                "description": "CWE-1321 Improperly Controlled Modification of Object Prototype Attributes (\u0027Prototype Pollution\u0027)",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-05-21T20:29:25.084Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "express-xss-sanitizer",
          "vendor": "n/a",
          "versions": [
            {
              "lessThan": "1.1.3",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Jayateertha Guruprasad"
        }
      ],
      "datePublic": "2022-09-26T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "The package express-xss-sanitizer before 1.1.3 are vulnerable to Prototype Pollution via the allowedTags attribute, allowing the attacker to bypass xss sanitization."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "exploitCodeMaturity": "PROOF_OF_CONCEPT",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "remediationLevel": "NOT_DEFINED",
            "reportConfidence": "NOT_DEFINED",
            "scope": "UNCHANGED",
            "temporalScore": 6.9,
            "temporalSeverity": "MEDIUM",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Prototype Pollution",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-09-26T05:05:11.000Z",
        "orgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730",
        "shortName": "snyk"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://security.snyk.io/vuln/SNYK-JS-EXPRESSXSSSANITIZER-3027443"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/AhmedAdelFahim/express-xss-sanitizer/issues/4"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://runkit.com/embed/w306l6zfm7tu"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/AhmedAdelFahim/express-xss-sanitizer/commit/3bf8aaaf4dbb1c209dcb8d87a82711a54c1ab39a"
        }
      ],
      "title": "Prototype Pollution",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "report@snyk.io",
          "DATE_PUBLIC": "2022-09-26T05:00:10.103193Z",
          "ID": "CVE-2022-21169",
          "STATE": "PUBLIC",
          "TITLE": "Prototype Pollution"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "express-xss-sanitizer",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_value": "1.1.3"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Jayateertha Guruprasad"
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "The package express-xss-sanitizer before 1.1.3 are vulnerable to Prototype Pollution via the allowedTags attribute, allowing the attacker to bypass xss sanitization."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Prototype Pollution"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://security.snyk.io/vuln/SNYK-JS-EXPRESSXSSSANITIZER-3027443",
              "refsource": "MISC",
              "url": "https://security.snyk.io/vuln/SNYK-JS-EXPRESSXSSSANITIZER-3027443"
            },
            {
              "name": "https://github.com/AhmedAdelFahim/express-xss-sanitizer/issues/4",
              "refsource": "MISC",
              "url": "https://github.com/AhmedAdelFahim/express-xss-sanitizer/issues/4"
            },
            {
              "name": "https://runkit.com/embed/w306l6zfm7tu",
              "refsource": "MISC",
              "url": "https://runkit.com/embed/w306l6zfm7tu"
            },
            {
              "name": "https://github.com/AhmedAdelFahim/express-xss-sanitizer/commit/3bf8aaaf4dbb1c209dcb8d87a82711a54c1ab39a",
              "refsource": "MISC",
              "url": "https://github.com/AhmedAdelFahim/express-xss-sanitizer/commit/3bf8aaaf4dbb1c209dcb8d87a82711a54c1ab39a"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730",
    "assignerShortName": "snyk",
    "cveId": "CVE-2022-21169",
    "datePublished": "2022-09-26T05:05:11.200Z",
    "dateReserved": "2022-02-24T00:00:00.000Z",
    "dateUpdated": "2025-05-21T20:29:25.084Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.