CVE-2021-22183

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-03-04 · updated 2026-06-17
Weakness: CWE-79

Description

An issue has been discovered in GitLab affecting all versions starting with 11.8. GitLab was vulnerable to a stored XSS in the epics page, which could be exploited with user interactions.

Affected products

GitLab: from 11.8 before 13.6.6; from 13.7.0 before 13.7.6; from 13.8.0 before 13.8.2 — fixed in 13.6.6, 13.7.6, 13.8.2

How to fix

Upgrade to a fixed version: GitLab 13.6.6, 13.7.6, 13.8.2. Check the vendor advisory for mitigations.

References

https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22183.json
https://gitlab.com/gitlab-org/gitlab/-/issues/294176
https://hackerone.com/reports/1055814
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22183.json
https://gitlab.com/gitlab-org/gitlab/-/issues/294176
https://hackerone.com/reports/1055814

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