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CVE-2025-12734

nvd nist
Published: Dec 11, 2025Modified: Dec 23, 2025

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3.5
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Exploitability: 2.1 / Impact: 1.4
Source: cve@gitlab.com (Secondary)

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.6 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have allowed an authenticated user to, under certain conditions, render content in dialogs to other users by injecting malicious HTML content into merge request titles.

Affected (6)

Products: Gitlab: Gitlab
Gitlab
1 product
Gitlab
Configuration A
6 vulnerable
Vulnerable SoftwareAffected Versions
Gitlab
Gitlab
From 15.6.0 to 18.4.6
Gitlab
From 18.5.0 to 18.5.4
Gitlab
From 18.6.0 to 18.6.2
Gitlab
From 15.6.0 to 18.4.6
Gitlab
From 18.5.0 to 18.5.4
Gitlab
From 18.6.0 to 18.6.2

Related CWEs

CWE-116
Improper Encoding or Escaping of Output
The product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved.

References (3)

Source: cve@gitlab.com
Release NotesVendor Advisory
Source: cve@gitlab.com
Broken Link
Source: cve@gitlab.com
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Timeline

No history available yet.