FKIE_CVE-2025-14046

Vulnerability from fkie_nvd - Published: 2025-12-11 18:16 - Updated: 2026-10-07 20:10
Severity
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Summary
An improper neutralization of input vulnerability was identified in GitHub Enterprise Server that allowed user-supplied HTML to inject DOM elements with IDs that collided with server-initialized data islands. These collisions could overwrite or shadow critical application state objects used by certain Project views, leading to unintended server-side POST requests or other unauthorized backend interactions. Successful exploitation requires an attacker to have access to the target GitHub Enterprise Server instance and to entice a privileged user to view crafted malicious content that includes conflicting HTML elements. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.18.3, 3.17.9, 3.16.12, 3.15.16, and 3.14.21.
References
product-cna@github.comhttps://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.21Release Notes
product-cna@github.comhttps://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.16Release Notes
product-cna@github.comhttps://docs.github.com/en/enterprise-server@3.16/admin/release-notes#3.16.12Release Notes
product-cna@github.comhttps://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.9Release Notes
product-cna@github.comhttps://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.3Release Notes
Impacted products
Vendor Product Version
github enterprise_server *
github enterprise_server *
github enterprise_server *
github enterprise_server *
github enterprise_server *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "affected",
          "product": "Enterprise Server",
          "vendor": "GitHub",
          "versions": [
            {
              "status": "unaffected",
              "version": "3.19.0",
              "versionType": "semver"
            },
            {
              "changes": [
                {
                  "at": "3.18.3",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "3.18.2",
              "status": "affected",
              "version": "3.18.0",
              "versionType": "semver"
            },
            {
              "changes": [
                {
                  "at": "3.17.9",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "3.17.8",
              "status": "affected",
              "version": "3.17.0",
              "versionType": "semver"
            },
            {
              "changes": [
                {
                  "at": "3.16.12",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "3.16.11",
              "status": "affected",
              "version": "3.16.0",
              "versionType": "semver"
            },
            {
              "changes": [
                {
                  "at": "3.15.16",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "3.15.15",
              "status": "affected",
              "version": "3.15.0",
              "versionType": "semver"
            },
            {
              "changes": [
                {
                  "at": "3.14.21",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "3.14.20",
              "status": "affected",
              "version": "3.14.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "product-cna@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "1EF86D06-BA41-42A4-B1AF-5398BB75D321",
              "versionEndExcluding": "3.14.21",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "EC5DF0C2-A9E5-46DC-8C09-F2FC55453734",
              "versionEndExcluding": "3.15.16",
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            },
            {
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              "matchCriteriaId": "F6EAE627-E160-4656-AF99-554C807B3B3C",
              "versionEndExcluding": "3.16.12",
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            },
            {
              "criteria": "cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "1B09055B-2885-4BD6-85A7-AEA22FBF98FD",
              "versionEndExcluding": "3.17.9",
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            {
              "criteria": "cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C90038CC-CAF1-4B27-9FB6-BB5BB35C1B48",
              "versionEndExcluding": "3.18.3",
              "versionStartIncluding": "3.18.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An improper neutralization of input vulnerability was identified in GitHub Enterprise Server that allowed user-supplied HTML to inject DOM elements with IDs that collided with server-initialized data islands. These collisions could overwrite or shadow critical application state objects used by certain Project views, leading to unintended server-side POST requests or other unauthorized backend interactions. Successful exploitation requires an attacker to have access to the target GitHub Enterprise Server instance and to entice a privileged user to view crafted malicious content that includes conflicting HTML elements. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.18.3, 3.17.9, 3.16.12, 3.15.16, and 3.14.21."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de neutralizaci\u00f3n de entrada incorrecta fue identificada en GitHub Enterprise Server que permit\u00eda que HTML proporcionado por el usuario inyectara elementos DOM con IDs que colisionaban con islas de datos inicializadas por el servidor. Estas colisiones pod\u00edan sobrescribir o enmascarar objetos cr\u00edticos de estado de la aplicaci\u00f3n utilizados por ciertas vistas de Proyecto, lo que llevaba a solicitudes POST no intencionadas del lado del servidor u otras interacciones no autorizadas con el backend. La explotaci\u00f3n exitosa requiere que un atacante tenga acceso a la instancia de GitHub Enterprise Server objetivo y que atraiga a un usuario privilegiado para ver contenido malicioso dise\u00f1ado que incluya elementos HTML en conflicto. Esta vulnerabilidad afect\u00f3 a todas las versiones de GitHub Enterprise Server anteriores a 3.18.3, 3.17.9, 3.16.12, 3.15.16 y 3.14.21."
    }
  ],
  "id": "CVE-2025-14046",
  "lastModified": "2026-10-07T20:10:01.970",
  "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": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 8.6,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "PASSIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "product-cna@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-14046",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-12-11T18:46:58.599003Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-12-11T18:16:19.253",
  "references": [
    {
      "source": "product-cna@github.com",
      "tags": [
        "Release Notes"
      ],
      "url": "https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.21"
    },
    {
      "source": "product-cna@github.com",
      "tags": [
        "Release Notes"
      ],
      "url": "https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.16"
    },
    {
      "source": "product-cna@github.com",
      "tags": [
        "Release Notes"
      ],
      "url": "https://docs.github.com/en/enterprise-server@3.16/admin/release-notes#3.16.12"
    },
    {
      "source": "product-cna@github.com",
      "tags": [
        "Release Notes"
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      "url": "https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.9"
    },
    {
      "source": "product-cna@github.com",
      "tags": [
        "Release Notes"
      ],
      "url": "https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.3"
    }
  ],
  "sourceIdentifier": "product-cna@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "product-cna@github.com",
      "type": "Secondary"
    }
  ]
}



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Nomenclature

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  • 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.



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