CVE-2025-14046
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.
Impact & exploitability
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.21
- https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.16
- https://docs.github.com/en/enterprise-server@3.16/admin/release-notes#3.16.12
- https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.9
- https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.3