github - ghsa-grjp-4jmr-mjcw

GHSA-GRJP-4JMR-MJCW

Vulnerability from github – Published: 2022-09-27 00:00 – Updated: 2022-09-30 04:42

Summary

express-xss-sanitizer vulnerable to Prototype Pollution via allowedTags attribute

Details

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

Severity ?

6.1 (Medium)


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

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JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "express-xss-sanitizer"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-21169"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1321"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-09-30T04:42:55Z",
    "nvd_published_at": "2022-09-26T05:15:00Z",
    "severity": "MODERATE"
  },
  "details": "The package express-xss-sanitizer before 1.1.3 is vulnerable to Prototype Pollution via the `allowedTags` attribute, allowing the attacker to bypass xss sanitization.",
  "id": "GHSA-grjp-4jmr-mjcw",
  "modified": "2022-09-30T04:42:55Z",
  "published": "2022-09-27T00:00:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-21169"
    },
    {
      "type": "WEB",
      "url": "https://github.com/AhmedAdelFahim/express-xss-sanitizer/issues/4"
    },
    {
      "type": "WEB",
      "url": "https://github.com/AhmedAdelFahim/express-xss-sanitizer/commit/3bf8aaaf4dbb1c209dcb8d87a82711a54c1ab39a"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/AhmedAdelFahim/express-xss-sanitizer"
    },
    {
      "type": "WEB",
      "url": "https://runkit.com/embed/w306l6zfm7tu"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-JS-EXPRESSXSSSANITIZER-3027443"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "express-xss-sanitizer vulnerable to Prototype Pollution via allowedTags attribute"
}

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

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

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

CWE

Prototype Pollution

Assigner

snyk

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

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

Credits

Jayateertha Guruprasad

Show details on NVD website

JSON

To clipboard

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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.

Action not permitted

GHSA-GRJP-4JMR-MJCW

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

Tags

Sightings

Nomenclature