FKIE_CVE-2023-44390

Vulnerability from fkie_nvd - Published: 2023-10-05 14:15 - Updated: 2024-11-21 08:25
Severity ?
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Summary
HtmlSanitizer is a .NET library for cleaning HTML fragments and documents from constructs that can lead to XSS attacks. The vulnerability occurs in configurations where foreign content is allowed, i.e. either `svg` or `math` are in the list of allowed elements. In the case an application sanitizes user input with a vulnerable configuration, an attacker could bypass the sanitization and inject arbitrary HTML, including JavaScript code. Note that in the default configuration the vulnerability is not present. The vulnerability has been fixed in versions 8.0.723 and 8.1.722-beta (preview version).
References
security-advisories@github.comhttps://github.com/mganss/HtmlSanitizer/commit/ab29319866c020f0cc11e6b92228cd8039196c6ePatch
security-advisories@github.comhttps://github.com/mganss/HtmlSanitizer/security/advisories/GHSA-43cp-6p3q-2pc4Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/mganss/HtmlSanitizer/commit/ab29319866c020f0cc11e6b92228cd8039196c6ePatch
af854a3a-2127-422b-91ae-364da2661108https://github.com/mganss/HtmlSanitizer/security/advisories/GHSA-43cp-6p3q-2pc4Vendor Advisory
Impacted products
Vendor Product Version
htmlsanitizer_project htmlsanitizer *
htmlsanitizer_project htmlsanitizer 8.1.719
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:htmlsanitizer_project:htmlsanitizer:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "FAB4C837-7F45-4E79-B35B-C85CA2326762",
              "versionEndExcluding": "8.0.723",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:htmlsanitizer_project:htmlsanitizer:8.1.719:beta:*:*:*:*:*:*",
              "matchCriteriaId": "B85B1227-279E-41EA-B576-8AD3528F5629",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "HtmlSanitizer is a .NET library for cleaning HTML fragments and documents from constructs that can lead to XSS attacks. The vulnerability occurs in configurations where foreign content is allowed, i.e. either `svg` or `math` are in the list of allowed elements. In the case an application sanitizes user input with a vulnerable configuration, an attacker could bypass the sanitization and inject arbitrary HTML, including JavaScript code. Note that in the default configuration the vulnerability is not present. The vulnerability has been fixed in versions 8.0.723 and 8.1.722-beta (preview version)."
    },
    {
      "lang": "es",
      "value": "HtmlSanitizer es una librer\u00eda .NET para limpiar fragmentos y documentos HTML de construcciones que pueden provocar ataques XSS. La vulnerabilidad ocurre en configuraciones donde se permite contenido externo, es decir, \"svg\" o \"math\" est\u00e1n en la lista de elementos permitidos. En el caso de que una aplicaci\u00f3n sanitice la entrada del usuario con una configuraci\u00f3n vulnerable, un atacante podr\u00eda eludir la sanitizaci\u00f3n e inyectar HTML arbitrario, incluido c\u00f3digo JavaScript. Tenga en cuenta que en la configuraci\u00f3n predeterminada la vulnerabilidad no est\u00e1 presente. La vulnerabilidad se ha solucionado en las versiones 8.0.723 y 8.1.722-beta (versi\u00f3n preliminar)."
    }
  ],
  "id": "CVE-2023-44390",
  "lastModified": "2024-11-21T08:25:48.207",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.7,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.7,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2023-10-05T14:15:09.737",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/mganss/HtmlSanitizer/commit/ab29319866c020f0cc11e6b92228cd8039196c6e"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/mganss/HtmlSanitizer/security/advisories/GHSA-43cp-6p3q-2pc4"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/mganss/HtmlSanitizer/commit/ab29319866c020f0cc11e6b92228cd8039196c6e"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/mganss/HtmlSanitizer/security/advisories/GHSA-43cp-6p3q-2pc4"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}


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  • 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.
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