CVE-2021-45329 Cross-site Scripting in Gitea

What is CVE-2021-45329?

CVE-2021-45329 is a medium-severity cross-site scripting vulnerability in Gitea Gitea, published on 8 Feb 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Cross Site Scripting (XSS) vulnerability exists in Gitea before 1.5.1 via the repository settings inside the external wiki/issue tracker URL field.

Weakness: CWE-79

Which versions are affected by CVE-2021-45329?

4 open source packages ship an affected version, including github.com/go-gitea/gitea and gitea. It affects 1 product.

Products include Gitea Gitea.

How do I fix CVE-2021-45329?

Upgrade github.com/go-gitea/gitea to 1.5.1 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-2021-45329 being exploited?

There is no known exploitation of CVE-2021-45329 in the wild and no public exploit code.

Other vulnerabilities in Gitea Gitea

• CVE-2026-60004 Gitea Code Injection Exploited Critical 9.8
• CVE-2026-73278 Gitea WebAuthn bypass during OAuth and OIDC sign-in Critical 9.8
• CVE-2026-94205 Gitea fork workflow approval bypass through maintainer-triggered events Critical 9.8
• CVE-2022-42968 Gitea vulnerable to Argument Injection Critical 9.8
• CVE-2021-45330 Improper Privilege Management in Gitea Critical 9.8

All Gitea Gitea vulnerabilities

Sources

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

Also known as BIT-gitea-2021-45329, CLEANSTART-2025-OQ04236, GHSA-r3gq-wxqf-q4gh, GO-2022-0314, UBUNTU-CVE-2021-45329.