CVE-2021-44858

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, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
References	DLA-2847-1, DSA-5021-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
mediawiki (PTS)	buster	1:1.31.16-1+deb10u2	fixed
	buster (security)	1:1.31.16-1+deb10u4	fixed
	bullseye (security), bullseye	1:1.35.8-1~deb11u1	fixed
	bookworm, sid	1:1.39.2-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin
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

Notes

https://phabricator.wikimedia.org/T297322
https://lists.wikimedia.org/hyperkitty/list/wikitech-l@lists.wikimedia.org/thread/QEN3EK4JXAVJMJ5GF3GYOAKNJPEKFQYA/