CVE-2022-34777 Cross-site Scripting in Jenkins GitLab Plugin

What is CVE-2022-34777?

CVE-2022-34777 is a medium-severity cross-site scripting vulnerability in Jenkins GitLab Plugin, published on 30 Jun 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Jenkins GitLab Plugin 1.5.34 and earlier does not escape multiple fields inserted into the description of webhook-triggered builds, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Item/Configure permission.

Weakness: CWE-79

Which versions are affected by CVE-2022-34777?

2 open source packages ship an affected version, including org.jenkins-ci.plugins:gitlab-plugin. It affects 1 product.

Products include Jenkins Gitlab.

How do I fix CVE-2022-34777?

Upgrade org.jenkins-ci.plugins:gitlab-plugin to 1.5.35 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-2022-34777 being exploited?

There is no known exploitation of CVE-2022-34777 in the wild and no public exploit code.

Other vulnerabilities in Jenkins GitLab Plugin

• CVE-2019-10301 Jenkins GitLab Plugin missing permission checks High 8.8
• CVE-2019-10300 Jenkins GitLab Plugin Cross-Site Request Forgery vulnerability High 8.0
• CVE-2022-30955 Missing permission check in Jenkins GitLab Plugin Medium 6.5
• CVE-2022-43411 Non-constant time webhook token comparison in Jenkins GitLab Plugin Medium 5.3
• CVE-2025-24397 Incorrect permission check in Jenkins GitLab Plugin allows enumerating credentials IDs Medium 4.3

Sources

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

Also known as GHSA-f655-xhvm-cwp4.