Vulnerability-Lookup

WID-SEC-W-2025-2826

Vulnerability from csaf_certbund - Published: 2025-12-11 23:00 - Updated: 2025-12-11 23:00

Summary

Microsoft GitHub Enterprise: Schwachstelle ermöglicht Cross-Site Scripting

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.

Produktbeschreibung

GitHub ist ein netzbasierter Dienst zur Versionsverwaltung für Software-Entwicklungsprojekte.

Angriff

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Microsoft GitHub Enterprise ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen.

Betroffene Betriebssysteme

- Sonstiges

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "text": "hoch"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "GitHub ist ein netzbasierter Dienst zur Versionsverwaltung f\u00fcr Software-Entwicklungsprojekte.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Microsoft GitHub Enterprise ausnutzen, um einen Cross-Site Scripting Angriff durchzuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Sonstiges",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2025-2826 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2025/wid-sec-w-2025-2826.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2025-2826 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2025-2826"
      },
      {
        "category": "external",
        "summary": "GitHub Enterprise Server Release Notes vom 2025-12-11",
        "url": "https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.3"
      },
      {
        "category": "external",
        "summary": "GitHub Enterprise Server Release Notes vom 2025-12-11",
        "url": "https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.9"
      },
      {
        "category": "external",
        "summary": "GitHub Enterprise Server Release Notes vom 2025-12-11",
        "url": "https://docs.github.com/en/enterprise-server@3.16/admin/release-notes#3.16.12"
      },
      {
        "category": "external",
        "summary": "GitHub Enterprise Server Release Notes vom 2025-12-11",
        "url": "https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.16"
      },
      {
        "category": "external",
        "summary": "GitHub Enterprise Server Release Notes vom 2025-12-11",
        "url": "https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.21"
      },
      {
        "category": "external",
        "summary": "NIST Vulnerability Database vom 2025-12-11",
        "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-14046"
      }
    ],
    "source_lang": "en-US",
    "title": "Microsoft GitHub Enterprise: Schwachstelle erm\u00f6glicht Cross-Site Scripting",
    "tracking": {
      "current_release_date": "2025-12-11T23:00:00.000+00:00",
      "generator": {
        "date": "2025-12-12T10:10:00.857+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.5.0"
        }
      },
      "id": "WID-SEC-W-2025-2826",
      "initial_release_date": "2025-12-11T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2025-12-11T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "Server \u003c3.14.21",
                "product": {
                  "name": "Microsoft GitHub Enterprise Server \u003c3.14.21",
                  "product_id": "T049351"
                }
              },
              {
                "category": "product_version",
                "name": "Server 3.14.21",
                "product": {
                  "name": "Microsoft GitHub Enterprise Server 3.14.21",
                  "product_id": "T049351-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:microsoft:github_enterprise:server__3.14.21"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "Server \u003c3.15.16",
                "product": {
                  "name": "Microsoft GitHub Enterprise Server \u003c3.15.16",
                  "product_id": "T049352"
                }
              },
              {
                "category": "product_version",
                "name": "Server 3.15.16",
                "product": {
                  "name": "Microsoft GitHub Enterprise Server 3.15.16",
                  "product_id": "T049352-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:microsoft:github_enterprise:server__3.15.16"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "Server \u003c3.16.12",
                "product": {
                  "name": "Microsoft GitHub Enterprise Server \u003c3.16.12",
                  "product_id": "T049353"
                }
              },
              {
                "category": "product_version",
                "name": "Server 3.16.12",
                "product": {
                  "name": "Microsoft GitHub Enterprise Server 3.16.12",
                  "product_id": "T049353-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:microsoft:github_enterprise:server__3.16.12"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "Server \u003c3.18.3",
                "product": {
                  "name": "Microsoft GitHub Enterprise Server \u003c3.18.3",
                  "product_id": "T049355"
                }
              },
              {
                "category": "product_version",
                "name": "Server 3.18.3",
                "product": {
                  "name": "Microsoft GitHub Enterprise Server 3.18.3",
                  "product_id": "T049355-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:microsoft:github_enterprise:server__3.18.3"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "Server \u003c3.17.9",
                "product": {
                  "name": "Microsoft GitHub Enterprise Server \u003c3.17.9",
                  "product_id": "T049356"
                }
              },
              {
                "category": "product_version",
                "name": "Server 3.17.9",
                "product": {
                  "name": "Microsoft GitHub Enterprise Server 3.17.9",
                  "product_id": "T049356-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:microsoft:github_enterprise:server__3.17.9"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "GitHub Enterprise"
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-14046",
      "product_status": {
        "known_affected": [
          "T049352",
          "T049351",
          "T049356",
          "T049355",
          "T049353"
        ]
      },
      "release_date": "2025-12-11T23:00:00.000+00:00",
      "title": "CVE-2025-14046"
    }
  ]
}

CVE-2025-14046 (GCVE-0-2025-14046)

Vulnerability from cvelistv5 – Published: 2025-12-11 17:52 – Updated: 2025-12-11 18:48

Title

Insufficient HTML Sanitization Allows User-Controlled DOM Elements to Overwrite Server-Initialized Data Islands and Trigger Unintended Server-Side POST Requests

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.

Severity ?

8.6 (High)


                        
                          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

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')

Assigner

GitHub_P

References

URL

Tags

	https://docs.github.com/en/enterprise-server@3.18…
	https://docs.github.com/en/enterprise-server@3.17…
	https://docs.github.com/en/enterprise-server@3.16…
	https://docs.github.com/en/enterprise-server@3.15…
	https://docs.github.com/en/enterprise-server@3.14…

Impacted products

	Vendor	Product	Version
	GitHub	Enterprise Server	Unaffected: 3.19.0 (semver) Affected: 3.18.0 , ≤ 3.18.2 (semver) Affected: 3.17.0 , ≤ 3.17.8 (semver) Affected: 3.16.0 , ≤ 3.16.11 (semver) Affected: 3.15.0 , ≤ 3.15.15 (semver) Affected: 3.14.0 , ≤ 3.14.20 (semver)

Credits

André Storfjord Kristiansen

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-14046",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-12-11T18:46:58.599003Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-12-11T18:48:17.846Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
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          "defaultStatus": "affected",
          "product": "Enterprise Server",
          "vendor": "GitHub",
          "versions": [
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              "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"
            },
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              "changes": [
                {
                  "at": "3.15.16",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "3.15.15",
              "status": "affected",
              "version": "3.15.0",
              "versionType": "semver"
            },
            {
              "changes": [
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                  "at": "3.14.21",
                  "status": "unaffected"
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      "credits": [
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          ],
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      ],
      "impacts": [
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      "metrics": [
        {
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            "Recovery": "NOT_DEFINED",
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            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
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            "valueDensity": "NOT_DEFINED",
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            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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          "scenarios": [
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              "value": "GENERAL"
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      "problemTypes": [
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      "references": [
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        {
          "url": "https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.9"
        },
        {
          "url": "https://docs.github.com/en/enterprise-server@3.16/admin/release-notes#3.16.12"
        },
        {
          "url": "https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.16"
        },
        {
          "url": "https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.21"
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      "source": {
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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

WID-SEC-W-2025-2826

CVE-2025-14046 (GCVE-0-2025-14046)

Tags

Sightings

Nomenclature