Improper access control in Gitlab Community Edition and GitLab Enterprise Edition - CVE-2021-22192
Published: March 22, 2021 / Updated: May 4, 2023
Vulnerability identifier: #VU51624
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2021-22192
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: GitLab, Inc
Affected software:
Gitlab Community Edition
GitLab Enterprise Edition
Gitlab Community Edition
GitLab Enterprise Edition
Detailed vulnerability description
The vulnerability allows a remote user to execute arbitrary code on the system.
The vulnerability exists due to improper access restrictions. A remote authenticated user can bypass implemented security restrictions and execute arbitrary code on the server via unsafe user-controlled markdown rendering options.
How to mitigate CVE-2021-22192
Install updates from vendor's website.