CVE-2021-22261

Name: CVE-2021-22261
Creator: NVD / NIST
Published: 2021-10-05T14:15:07.677+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.95%

Last modified Jun 17, 2026

CVE-2021-22261 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. A stored Cross-Site Scripting vulnerability in the Jira integration in all GitLab versions starting from 13.9 before 14.0.9, all versions starting from 14.1 before 14.1.4, and all versions starting from 14.2 before 14.2.2 allows an attacker to execute arbitrary JavaScript code on the victim's behalf via malicious Jira API responses. EPSS estimates a 0.95% chance of exploitation in the next 30 days.

Description

A stored Cross-Site Scripting vulnerability in the Jira integration in all GitLab versions starting from 13.9 before 14.0.9, all versions starting from 14.1 before 14.1.4, and all versions starting from 14.2 before 14.2.2 allows an attacker to execute arbitrary JavaScript code on the victim's behalf via malicious Jira API responses

Metrics

CVSS 3.1

4.8/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.95%

56.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Gitlab	Gitlab	>= 13.9.0, < 14.0.9
Gitlab	Gitlab	>= 14.1.0, < 14.1.4
Gitlab	Gitlab	>= 14.2.0, < 14.2.2

References

https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22261.jsonVendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/issues/328389Broken Link
https://hackerone.com/reports/1132083Permissions Required, Third Party Advisory
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22261.jsonVendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/issues/328389Broken Link
https://hackerone.com/reports/1132083Permissions Required, Third Party Advisory

Timeline

Published: Oct 5, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-22261?

How severe is CVE-2021-22261?

CVE-2021-22261 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.95% probability of exploitation in the next 30 days.

How do I fix CVE-2021-22261?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-22261?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST