CVE-2025-2443 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

High 8.7 Published 20 Jun 2025 Updated 20 Jun 2025

Attackers can execute scripts in users' browsers and bypass CSP in GitLab EE, requiring user interaction.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2025-2443?

CVE-2025-2443 is a high-severity cross-site scripting vulnerability in Gitlab Gitlab, published on 20 Jun 2025. 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 EE that allows for cross-site-scripting attack and content security policy bypass in a user's browser under specific conditions, affecting all versions from 16.6 before 17.9.7, 17.10 before 17.10.5, and 17.11 before 17.11.1.

Weakness: CWE-79

Which versions are affected by CVE-2025-2443?

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

Package	Affected	Fixed in
`gitlab` Bitnami	From `16.6.0`	`17.11.1`

Products include Gitlab Gitlab.

How do I fix CVE-2025-2443?

Upgrade gitlab to 17.11.1 or later.

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-2025-2443 being exploited?

There is no known exploitation of CVE-2025-2443 in the wild and no public exploit code.

All Gitlab Gitlab vulnerabilities

Sources

Also known as BIT-gitlab-2025-2443, GHSA-8qgm-5447-jmq4, UBUNTU-CVE-2025-2443.