CVE-2025-11224 | THREATINT

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.10 before 18.3.6, 18.4 before 18.4.4, and 18.5 before 18.5.2 that could have allowed an authenticated user to execute stored cross-site scripting through improper input validation in the Kubernetes proxy functionality.

PUBLISHED Reserved 2025-10-01 | Published 2026-01-14 | Updated 2026-01-14 | Assigner GitLab

HIGH: 7.7CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N

Problem types

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Default status

unaffected

15.10 (semver) before 18.3.6

affected

18.4 (semver) before 18.4.4

affected

18.5 (semver) before 18.5.2

affected

Credits

Thanks [joaxcar](https://hackerone.com/joaxcar) for reporting this vulnerability through our HackerOne bug bounty program finder

References

about.gitlab.com/...12/patch-release-gitlab-18-5-2-released/

gitlab.com/gitlab-org/gitlab/-/issues/573223 (GitLab Issue #573223) issue-tracking permissions-required

hackerone.com/reports/3277291 (HackerOne Bug Bounty Report #3277291) technical-description exploit permissions-required

cve.org (CVE-2025-11224)

nvd.nist.gov (CVE-2025-11224)

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