BaseFortify

Publication date: 2025-11-10

Last updated on: 2025-12-08

Assigner: GitHub, Inc. (Products Only)

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.

CVSS Scores

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Meta Information

Published

2025-11-10

Last Modified

2025-12-08

Generated

2026-07-06

AI Q&A

2025-11-11

EPSS Evaluated

2026-07-05

NVD

CVE-2025-11892

Affected Vendors & Products

Vendor	Product	Version / Range
github	enterprise_server	to 3.14.19 (exc)
github	enterprise_server	From 3.15.0 (inc) to 3.15.14 (exc)
github	enterprise_server	From 3.16.0 (inc) to 3.16.10 (exc)
github	enterprise_server	From 3.17.0 (inc) to 3.17.7 (exc)
github	enterprise_server	3.18.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-79	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.

Attack-Flow Graph

Executive Summary

This vulnerability is an improper neutralization of input in GitHub Enterprise Server that allows DOM-based cross-site scripting (XSS) via the Issues search label filter. An attacker with access to the target GitHub Enterprise Server instance can craft a malicious link that, when clicked by a user operating in sudo mode, can lead to privilege escalation and unauthorized workflow triggers.

Impact Analysis

If exploited, this vulnerability can allow an attacker to escalate privileges and trigger unauthorized workflows on the GitHub Enterprise Server. This could lead to unauthorized actions being performed with elevated privileges, potentially compromising the security and integrity of the server and its workflows.

Mitigation Strategies

To mitigate this vulnerability, immediately upgrade your GitHub Enterprise Server to version 3.18.1, 3.17.7, 3.16.10, 3.15.14, or 3.14.19 or later, as these versions contain the fix for the issue. Additionally, avoid clicking on untrusted or suspicious links while operating in sudo mode to prevent exploitation.

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