CVE-2025-0811 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

High 8.7 Published 27 Mar 2025 Updated 27 Mar 2025

Cross-site scripting in GitLab allows attackers to execute scripts in victim browsers, potentially leading to account takeover.

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-2025-0811?

CVE-2025-0811 is a high-severity cross-site scripting vulnerability in Gitlab Gitlab, published on 27 Mar 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 CE/EE affecting all versions from 17.7 before 17.8.6, 17.9 before 17.9.3, and 17.10 before 17.10.1. Improper rendering of certain file types leads to cross-site scripting.

Weakness: CWE-79

Which versions are affected by CVE-2025-0811?

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

Package	Affected	Fixed in
`gitlab` Bitnami	From `17.7.0`	`17.10.1`

Products include Gitlab Gitlab.

How do I fix CVE-2025-0811?

Upgrade gitlab to 17.10.1 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-2025-0811 being exploited?

There is no known exploitation of CVE-2025-0811 in the wild and no public exploit code.

All Gitlab Gitlab vulnerabilities

Sources

Also known as BIT-gitlab-2025-0811, GHSA-qvvw-3v9r-73ph, UBUNTU-CVE-2025-0811.