CVE-2025-4439 — Cross-site Scripting in Gitlab

CWE-79 — Cross-site Scripting5 documents5 sources
Severity
5.4MEDIUMNVD
EPSS
0.1%
top 73.61%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
GitlabDebian GitlabGitlab CE
Timeline
PublishedJul 23

Description

An issue has been discovered in GitLab CE/EE affecting all versions from 15.10 before 18.0.5, 18.1 before 18.1.3, and 18.2 before 18.2.1 that could have allowed an authenticated user to perform cross-site scripting attacks when the instance is served through certain content delivery networks.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NExploitability: 2.3 | Impact: 2.7

Affected Packages5 packages

▶CVEListV5gitlab/gitlab15.10 — 18.0.5+2
▶NVDgitlab/gitlab15.10.0 — 18.0.5+2
▶debiandebian/gitlab
▶gitlabgitlab/gitlab

🔴Vulnerability Details

2
GHSA
GHSA-2r7r-6rh2-7qc9: An issue has been discovered in GitLab CE/EE affecting all versions from 15↗2025-07-23
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OSV
CVE-2025-4439: An issue has been discovered in GitLab CE/EE affecting all versions from 15↗2025-07-23
▶

📋Vendor Advisories

2
GitLab
CVE-2025-4439: An issue has been discovered in GitLab CE/EE affecting all versions from 15.10 before 18.0.5, 18.1 before 18.1.3, and 18.2 before 18.2.1 that could ha↗2025-07-23
▶
Debian
CVE-2025-4439: gitlab - An issue has been discovered in GitLab CE/EE affecting all versions from 15.10 b...↗2025
▶