Vulnerability · Published Apr 2, 2021 · Assigned by GitLab

CVE-2021-22196

Medium 6.3

In plain English

A medium-severity security flaw in GitLab from GitLab. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 61% of all known vulnerabilities).

Severity (CVSS 3.1)6.3Medium

Exploit odds (30 days)0.9%top 38.9% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

An issue has been discovered in GitLab CE/EE affecting all versions starting from 13.4. It was possible to exploit a stored cross-site-scripting in merge request via a specifically crafted branch name.

Affected products (as reported)

Vendor	Product	Versions
GitLab	GitLab	>=13.4, <13.8.7>=13.9, <13.9.5>=13.10, <13.10.1

References

https://gitlab.com/gitlab-org/gitlab/-/issues/254710 x_refsource_MISC
https://hackerone.com/reports/977697 x_refsource_MISC
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22196.json x_refsource_CONFIRM