CVE-2025-4439
High
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.
SeverityHigh
CVSS7.7
Exploit probability—
Product
Gitlab
PublishedJul 23, 2025
First seenJul 23, 2025
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- gitlab gitlab18.0.5, 18.1.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gitlab gitlab | 15.10.0 ≤ v < 18.0.5, 18.1.0 ≤ v < 18.1.3, 18.2 | 18.0.5, 18.1.3 |
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