FKIE_CVE-2025-67723

Vulnerability from fkie_nvd - Published: 2026-01-28 19:16 - Updated: 2026-02-09 17:40
Severity ?
4.6 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Summary
Discourse is an open source discussion platform. Versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0 have a content-security-policy-mitigated cross-site scriptinv vulnerability on the Discourse Math plugin when using its KaTeX variant. This issue is patched in versions 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0. As a workaround, the Discourse Math plugin can be disabled, or the Mathjax provider can be used instead of KaTeX.
References
security-advisories@github.comhttps://github.com/discourse/discourse/security/advisories/GHSA-955h-m28g-5379Vendor Advisory
Impacted products
Vendor Product Version
discourse discourse *
discourse discourse *
discourse discourse 2025.12.0
To clipboard 

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    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:discourse:discourse:*:*:*:*:stable:*:*:*",
              "matchCriteriaId": "FDBF21E2-1191-4020-A17A-0702DE4E6451",
              "versionEndExcluding": "3.5.4",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "539B5B85-44F0-408E-B994-08BB20EA9C26",
              "versionEndExcluding": "2025.11.2",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Discourse is an open source discussion platform. Versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0 have a content-security-policy-mitigated cross-site scriptinv vulnerability on the Discourse Math plugin when using its KaTeX variant. This issue is patched in versions 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0. As a workaround, the Discourse Math plugin can be disabled, or the Mathjax provider can be used instead of KaTeX."
    },
    {
      "lang": "es",
      "value": "Discourse es una plataforma de discusi\u00f3n de c\u00f3digo abierto. Las versiones anteriores a 3.5.4, 2025.11.2, 2025.12.1 y 2026.1.0 tienen una vulnerabilidad de scripting entre sitios mitigada por pol\u00edtica de seguridad de contenido en el plugin Discourse Math cuando se utiliza su variante KaTeX. Este problema est\u00e1 parcheado en las versiones 3.5.4, 2025.11.2, 2025.12.1 y 2026.1.0. Como soluci\u00f3n alternativa, se puede deshabilitar el plugin Discourse Math, o se puede usar el proveedor Mathjax en lugar de KaTeX."
    }
  ],
  "id": "CVE-2025-67723",
  "lastModified": "2026-02-09T17:40:37.820",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 4.6,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.1,
        "impactScore": 2.5,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
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        "exploitabilityScore": 2.3,
        "impactScore": 2.7,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2026-01-28T19:16:22.640",
  "references": [
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      "source": "security-advisories@github.com",
      "tags": [
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      ],
      "url": "https://github.com/discourse/discourse/security/advisories/GHSA-955h-m28g-5379"
    }
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  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}


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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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