CVE-2025-14046
mediumpriority · track · 24EPSS 0.004 · 33 %ileDEEUUSEPSS · scored 2026-10-28
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.1–8.6
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (21)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2025-2826Microsoft GitHub Enterprise: Schwachstelle ermöglicht Cross-Site ScriptingDeutsch2025-12-11csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Microsoft GitHub Enterprise ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (16)
External citations — patches, advisories, analysis.
- https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.21cnnvd
- https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.16cnnvd
- https://docs.github.com/en/enterprise-server@3.16/admin/release-notes#3.16.12cnnvd
- https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.9cnnvd
- https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.3cnnvd
- https://docs.github.com/en/enterprise-server@3.19/admin/overview/about-github-enterprise-serverPatchcnnvd
- https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.21enisa_euvd
- https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.16enisa_euvd
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