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.
Fixes

Solution

Upgrade to versions 18.0.5, 18.1.3, 18.2.1 or above.


Workaround

No workaround given by the vendor.

History

Fri, 08 Aug 2025 18:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
cpe:2.3:a:gitlab:gitlab:18.2:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:18.2:*:*:*:enterprise:*:*:*

Wed, 23 Jul 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 23 Jul 2025 18:15:00 +0000

Type Values Removed Values Added
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.
Title Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
First Time appeared Gitlab
Gitlab gitlab
Weaknesses CWE-79
CPEs cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
Vendors & Products Gitlab
Gitlab gitlab
References
Metrics cvssV3_1

{'score': 7.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitLab

Published:

Updated: 2025-07-25T03:55:23.550Z

Reserved: 2025-05-08T16:30:53.181Z

Link: CVE-2025-4439

cve-icon Vulnrichment

Updated: 2025-07-23T18:23:15.682Z

cve-icon NVD

Status : Analyzed

Published: 2025-07-23T18:15:27.593

Modified: 2025-08-08T18:27:04.367

Link: CVE-2025-4439

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.