CVE-2025-2255

HIGH

GitLab 13.5.0-17.8.5, 17.9.0-17.9.2, 17.10.0 - Cross-Site Scripting in AppSec Error Messages

Title source: llm
STIX 2.1

Description

An issue has been discovered in Gitlab EE/CE for AppSec affecting all versions from 13.5.0 before 17.8.6, 17.9 before 17.9.3, and 17.10 before 17.10.1. Certain error messages could allow Cross-Site Scripting attacks (XSS). for AppSec.

References (2)

Core 2
Core References
Exploit, Issue Tracking issue-tracking permissions-required
https://gitlab.com/gitlab-org/gitlab/-/issues/524635
Permissions Required technical-description exploit permissions-required
https://hackerone.com/reports/2994150

Scores

CVSS v3 8.7
EPSS 0.0014
EPSS Percentile 32.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-79
Status published
Products (2)
gitlab/gitlab 17.10.0 (2 CPE variants)
gitlab/gitlab 13.5.0 - 17.8.6 (2 CPE variants)
Published Mar 27, 2025
Tracked Since Feb 18, 2026