| Name | CVE-2021-44856 |
| Description | An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. A title blocked by AbuseFilter can be created via Special:ChangeContentModel due to the mishandling of the EditFilterMergedContent hook return value. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3117-1, DSA-5246-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| mediawiki (PTS) | stretch (security) | 1:1.27.7-1+deb9u11 | fixed |
| stretch (lts), stretch | 1:1.27.7-1+deb9u13 | fixed |
| buster (security), buster, buster (lts) | 1:1.31.16-1+deb10u8 | fixed |
| bullseye | 1:1.35.13-1+deb11u2 | fixed |
| bullseye (security) | 1:1.35.13-1+deb11u3 | fixed |
| bookworm (security), bookworm | 1:1.39.10-1~deb12u1 | fixed |
| sid, trixie | 1:1.39.10-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
[stretch] - mediawiki <postponed> (Minor issue)
https://phabricator.wikimedia.org/T271037
https://lists.wikimedia.org/hyperkitty/list/wikitech-l@lists.wikimedia.org/thread/QEN3EK4JXAVJMJ5GF3GYOAKNJPEKFQYA/
[stretch] - mediawiki <not-affected> (Vulnerable code was introduced later)