CVE-2023-2015 Cross-site scripting in GitLab

What is CVE-2023-2015?

CVE-2023-2015 is a medium-severity cross-site scripting vulnerability in Gitlab Gitlab, published on 7 Jun 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

An issue has been discovered in GitLab CE/EE affecting all versions starting from 15.8 before 15.10.8, all versions starting from 15.11 before 15.11.7, all versions starting from 16.0 before 16.0.2. A reflected XSS was possible when creating new abuse reports which allows attackers to perform arbitrary actions on behalf of victims.

Weakness: CWE-79

Which versions are affected by CVE-2023-2015?

1 open source package ship an affected version, including gitlab. It affects 1 product.

Products include Gitlab Gitlab.

How do I fix CVE-2023-2015?

Upgrade gitlab to a fixed version for your release line: 15.11.7 or 16.0.2.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2023-2015 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-2015 exists.

Other vulnerabilities in Gitlab Gitlab

• CVE-2026-97229 GitLab Community Edition and Enterprise Edition Integer Overflow or Wraparound Exploited Critical 10.0
• CVE-2026-85706 GitLab Community Edition and Enterprise Edition Path Traversal Exploited Critical 10.0
• CVE-2023-7028 GitLab Community and Enterprise Editions Improper Access Control Exploited Critical 10.0
• CVE-2021-22205 GitLab Community and Enterprise Editions Remote Code Execution Exploited Critical 10.0
• CVE-2021-39935 GitLab Community and Enterprise Editions Server-Side Request Forgery (SSRF) Exploited Medium 6.8

All Gitlab Gitlab vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-gitlab-2023-2015, GHSA-vx2h-m34g-ggpg, UBUNTU-CVE-2023-2015.