CVE-2023-5933: gitlab XSS — Fix

Description

An issue has been discovered in GitLab CE/EE affecting all versions after 13.7 before 16.6.6, 16.7 prior to 16.7.4, and 16.8 prior to 16.8.1. Improper input sanitization of user name allows arbitrary API PUT requests.

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CVSS v3.1 Score

6.4

MEDIUM

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

Weakness Type (CWE)

CWE-80 CWE-80

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
gitlab	gitlab	13.7.0 — 16.6.6
gitlab	gitlab	13.7.0 — 16.6.6
gitlab	gitlab	16.7.0 — 16.7.4
gitlab	gitlab	16.7.0 — 16.7.4
gitlab	gitlab	All
gitlab	gitlab	All

References

Advisories & Patches

https://about.gitlab.com/releases/2024/01/25/critical-security-release-gitlab-16-8-1-released/ https://about.gitlab.com/releases/2024/01/25/critical-security-release-gitlab-16-8-1-released/

Other References

https://gitlab.com/gitlab-org/gitlab/-/issues/430236 https://hackerone.com/reports/2225710 https://gitlab.com/gitlab-org/gitlab/-/issues/430236 https://hackerone.com/reports/2225710

Frequently Asked Questions

What is CVE-2023-5933? +

An issue has been discovered in GitLab CE/EE affecting all versions after 13.7 before 16.6.6, 16.7 prior to 16.7.4, and 16.8 prior to 16.8.1. Improper input sanitization of user name allows arbitrary API PUT requests. It has a CVSS v3.1 base score of 6.4 (MEDIUM).

How severe is CVE-2023-5933? +

CVE-2023-5933 has a CVSS v3.1 score of 6.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2023-5933? +

CVE-2023-5933 affects products from gitlab, specifically: gitlab. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-5933? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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