CVE-2026-13320

Name: CVE-2026-13320
Creator: NVD / NIST
Published: 2026-07-08T21:16:46.63+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.30%

Last modified Jul 9, 2026

CVE-2026-13320 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.7 before 18.11.7, 19.0 before 19.0.4, and 19.1 before 19.1.2 that under certain conditions could have allowed an authenticated user to execute arbitrary scripts in another user's browser session due to improper sanitization of user-supplied input.. EPSS estimates a 0.30% chance of exploitation in the next 30 days.

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.7 before 18.11.7, 19.0 before 19.0.4, and 19.1 before 19.1.2 that under certain conditions could have allowed an authenticated user to execute arbitrary scripts in another user's browser session due to improper sanitization of user-supplied input.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.30%

21.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Gitlab	Gitlab	>= 15.7.0, < 18.11.7
Gitlab	Gitlab	>= 19.0.0, < 19.0.4
Gitlab	Gitlab	>= 19.1.0, < 19.1.2

References

https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-2-released/Vendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/work_items/604063Broken Link
https://hackerone.com/reports/3816917Permissions Required

Timeline

Published: Jul 8, 2026
Last Modified: Jul 9, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-13320?

How severe is CVE-2026-13320?

CVE-2026-13320 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.30% probability of exploitation in the next 30 days.

How do I fix CVE-2026-13320?

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.

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Source: NVD / NIST