CVE-2021-22242 — Cross-site Scripting in Gitlab

CWE-79 — Cross-site Scripting5 documents5 sources
Severity
5.4MEDIUMNVD
EPSS
2.3%
top 15.30%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
GitlabDebian GitlabGitlab CE
Timeline
PublishedAug 25
Latest updateMay 24

Description

Insufficient input sanitization in Mermaid markdown in GitLab CE/EE version 11.4 and up allows an attacker to exploit a stored cross-site scripting vulnerability via a specially-crafted markdown

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NExploitability: 2.3 | Impact: 2.7

Affected Packages5 packages

▶NVDgitlab/gitlab11.4.0 — 13.12.9+2
▶debiandebian/gitlab< gitlab 15.10.8+ds1-2 (sid)
▶CVEListV5gitlab/gitlab>=11.4, <13.12.9, >=14.0, <14.0.7, >=14.1, <14.1.2+2
▶gitlabgitlab/gitlab

🔴Vulnerability Details

2
GHSA
GHSA-3r2f-rpgw-83gm: Insufficient input sanitization in Mermaid markdown in GitLab CE/EE version 11↗2022-05-24
▶
OSV
CVE-2021-22242: Insufficient input sanitization in Mermaid markdown in GitLab CE/EE version 11↗2021-08-25
▶

📋Vendor Advisories

2
GitLab
CVE-2021-22242: Insufficient input sanitization in Mermaid markdown in GitLab CE/EE version 11.4 and up allows an attacker to exploit a stored cross-site scripting vu↗2021-08-25
▶
Debian
CVE-2021-22242: gitlab - Insufficient input sanitization in Mermaid markdown in GitLab CE/EE version 11.4...↗2021
▶