CVE-2025-11892: github enterprise_server Cross-site Scripting

Vulnerability summary

CVE-2025-11892 is a critical (CVSS 9.6) Cross-site Scripting vulnerability in github enterprise_server. EPSS estimates a 0.70% chance of exploitation in the next 30 days, higher than 52.2% of scored vulnerabilities.

Timeline

1. 10-11-2025
   PublishedVulnerability first disclosed.
2. 12-11-2025
   Last modifiedVulnerability information updated.

Description

An improper neutralization of input vulnerability was identified in GitHub Enterprise Server that allows DOM-based cross-site scripting via Issues search label filter that could lead to privilege escalation and unauthorized workflow triggers. Successful exploitation requires an attacker to have access to the target GitHub Enterprise Server instance and to entice a user, while operating in sudo mode, to click on a crafted malicious link to perform actions that require elevated privileges. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.18.1, 3.17.7, 3.16.10, 3.15.14, 3.14.19.

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.