CVE-2022-28202 Cross-site scripting in n/a

What is CVE-2022-28202?

CVE-2022-28202 is a medium-severity cross-site scripting vulnerability in Debian Debian Linux, published on 30 Mar 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

An XSS issue was discovered in MediaWiki before 1.35.6, 1.36.x before 1.36.4, and 1.37.x before 1.37.2. The widthheight, widthheightpage, and nbytes properties of messages are not escaped when used in galleries or Special:RevisionDelete.

Weakness: CWE-79

Which versions are affected by CVE-2022-28202?

1 open source package ship an affected version, including mediawiki. It affects 3 products.

Products include Debian Debian Linux, Fedoraproject Fedora, Mediawiki Mediawiki.

How do I fix CVE-2022-28202?

Upgrade mediawiki to a fixed version for your release line: 1.35.6, 1.36.4 or 1.37.2.

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-2022-28202 being exploited?

There is no known exploitation of CVE-2022-28202 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

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

Also known as BIT-mediawiki-2022-28202, DEBIAN-CVE-2022-28202, GHSA-5c63-m98j-vx6v, UBUNTU-CVE-2022-28202.