CVE-2026-13320

high

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.7 before 18.11.7, 19.0 before 19.0.4, and 19.1 before 19.1.2 that under certain conditions could have allowed an authenticated user to execute arbitrary scripts in another user's browser session due to improper sanitization of user-supplied input.

References

https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-2-released/

https://hackerone.com/reports/3816917

https://gitlab.com/gitlab-org/gitlab/-/work_items/604063

Details

Source: Mitre, NVD

Published: 2026-07-08

Updated: 2026-07-09

Risk Information

CVSS v2

Base Score: 6.2

Vector: CVSS2#AV:N/AC:H/Au:M/C:C/I:C/A:N

Severity: Medium

CVSS v3

Base Score: 7.3

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

Severity: High

EPSS

EPSS: 0.003