XSS in Gitlab

CVE-2021-22241

An issue has been discovered in GitLab CE/EE affecting all versions starting from 14.0. It was possible to exploit a stored cross-site-scripting via a specifically crafted default branch name.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.010 (59.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N.

Affected products

  • Gitlab — versions >=14.1, <14.1.2, >=14.0, <14.0.7

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-22241?
CVE-2021-22241 is a high-severity vulnerability in Gitlab, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2021-08-05.
How severe is CVE-2021-22241?
High severity. CVSS v3 base score is 8.7 out of 10.