What is CVE-2023-3500?

CVE-2023-3500 is a medium-severity vulnerability in Gitlab, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2023-08-02.

How severe is CVE-2023-3500?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Gitlab

CVE-2023-3500

An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.0 before 16.0.8, all versions starting from 16.1 before 16.1.3, all versions starting from 16.2 before 16.2.2. A reflected XSS was possible when creating specific PlantUML diagrams that allowed the attacker to perform arbitrary actions on behalf of victims.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.005 (38.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Gitlab — versions 10.0, 16.1, 16.2

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@gitlab.com (issue-tracking, permissions-required, Broken Link)
cve@gitlab.com (Permissions Required, technical-description, permissions-required, exploit)

Frequently asked questions

What is CVE-2023-3500?: CVE-2023-3500 is a medium-severity vulnerability in Gitlab, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2023-08-02.
How severe is CVE-2023-3500?: Medium severity. CVSS v3 base score is 4.8 out of 10.