| Name | CVE-2021-44858 | 
| 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. It is possible to use action=edit&undo= followed by action=mcrundo and action=mcrrestore to view private pages on a private wiki that has at least one page set in $wgWhitelistRead. | 
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) | 
| References | DLA-2847-1, DSA-5021-1 | 
The table below lists information on source packages.
| Source Package | Release | Version | Status | 
|---|---|---|---|
| mediawiki (PTS) | bullseye | 1:1.35.13-1+deb11u2 | fixed | 
| bullseye (security) | 1:1.35.13-1+deb11u5 | fixed | |
| bookworm, bookworm (security) | 1:1.39.13-1~deb12u1 | fixed | |
| trixie | 1:1.43.3+dfsg-1 | fixed | |
| forky, sid | 1:1.43.5+dfsg-1 | fixed | 
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs | 
|---|---|---|---|---|---|---|
| mediawiki | source | stretch | 1:1.27.7-1+deb9u11 | DLA-2847-1 | ||
| mediawiki | source | buster | 1:1.31.16-1+deb10u2 | |||
| mediawiki | source | bullseye | 1:1.35.4-1+deb11u2 | DSA-5021-1 | ||
| mediawiki | source | (unstable) | 1:1.35.5-1 | 
https://phabricator.wikimedia.org/T297322
https://lists.wikimedia.org/hyperkitty/list/wikitech-l@lists.wikimedia.org/thread/QEN3EK4JXAVJMJ5GF3GYOAKNJPEKFQYA/