CVE-2021-22227

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-07-07 · updated 2026-06-17
Weakness: CWE-79

Description

A reflected cross-site script vulnerability in GitLab before versions 13.11.6, 13.12.6 and 14.0.2 allowed an attacker to send a malicious link to a victim and trigger actions on their behalf if they clicked it

Affected products

GitLab: before 13.11.6; from 13.12.0 before 13.12.6; from 14.0.0 before 14.0.2 — fixed in 13.11.6, 13.12.6, 14.0.2

How to fix

Upgrade to a fixed version: GitLab 13.11.6, 13.12.6, 14.0.2. Check the vendor advisory for mitigations.

References

https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22227.json
https://gitlab.com/gitlab-org/gitlab/-/issues/212887
https://hackerone.com/reports/834555
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22227.json
https://gitlab.com/gitlab-org/gitlab/-/issues/212887
https://hackerone.com/reports/834555

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