5.4

CVE-2026-6335

Exploit

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

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.11 before 18.11.3 that under certain conditions could have allowed an authenticated user to execute arbitrary code in another user's browser session due to improper sanitization.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Gitlab ≫ GitLab SwEditioncommunity Version >= 18.11.0 < 18.11.3
Gitlab ≫ GitLab SwEditionenterprise Version >= 18.11.0 < 18.11.3
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.19% 0.09
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
cve@gitlab.com 5.4 2.3 2.7
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/
Release Notes
https://gitlab.com/gitlab-org/gitlab/-/work_items/596760
Broken Link
https://hackerone.com/reports/3673647
Permissions Required