CVE-2025-12716

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

CVSS 8.7 HIGHEPSS 0.4%CWE-79

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.4 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that, under certain conditions could have allowed an authenticated user to perform unauthorized actions on behalf of another user by creating wiki pages with malicious content.

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Affected products

GitLab · GitLab

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References

https://about.gitlab.com/releases/2025/12/10/patch-release-gitlab-18-6-2-released/https://gitlab.com/gitlab-org/gitlab/-/issues/579548 https://hackerone.com/reports/3405832