CVE-2025-6186 — Cross-site Scripting in Gitlab

CWE-79 — Cross-site ScriptingCWE-476 — NULL Pointer Dereference7 documents7 sources
Severity
5.4MEDIUMNVD
EPSS
0.1%
top 83.30%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
GitlabDebian GitlabGitlab CE
Timeline
PublishedAug 13

Description

An issue has been discovered in GitLab CE/EE affecting all versions from 18.1 before 18.1.4, and 18.2 before 18.2.2 that could have allowed authenticated users to achieve account takeover by injecting malicious HTML into work item names.

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/gitlab18.1 — 18.1.4+1
▶NVDgitlab/gitlab18.1.0 — 18.1.4+1
▶debiandebian/gitlab
▶gitlabgitlab/gitlab

🔴Vulnerability Details

2
OSV
CVE-2025-6186: An issue has been discovered in GitLab CE/EE affecting all versions from 18↗2025-08-13
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GHSA
GHSA-h6qj-3xrq-vxh8: An issue has been discovered in GitLab CE/EE affecting all versions from 18↗2025-08-13
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📋Vendor Advisories

4
GitLab
CVE-2025-6186: An issue has been discovered in GitLab CE/EE affecting all versions from 18.1 before 18.1.4, and 18.2 before 18.2.2 that could have allowed authentica↗2025-08-13
▶
Red Hat
kernel: net: clear the dst when changing skb protocol↗2025-07-04
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Debian
CVE-2025-6186: gitlab - An issue has been discovered in GitLab CE/EE affecting all versions from 18.1 be...↗2025
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Citrix
Citrix Security Bulletin CTX232161↗
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