Candidate: CVE-2021-44857
PublicDate: 2021-12-17 04:15:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44857
 https://phabricator.wikimedia.org/T297322
 https://lists.wikimedia.org/hyperkitty/list/wikitech-l@lists.wikimedia.org/thread/QEN3EK4JXAVJMJ5GF3GYOAKNJPEKFQYA/
 https://github.com/advisories/GHSA-x4wg-g4fv-f8m6
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=mcrundo followed by
 action=mcrrestore to replace the content of any arbitrary page (that the
 user doesn't have edit rights for). This applies to any public wiki, or a
 private wiki that has at least one page set in $wgWhitelistRead.
Ubuntu-Description:
Notes:
Mitigation:
Bugs:
 https://bugs.launchpad.net/ubuntu/+source/mediawiki/+bug/1955352
Priority: medium
Discovered-by:
Assigned-to:
CVSS:
 nvd: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N [6.5 MEDIUM]


Patches_mediawiki:
 upstream: https://github.com/wikimedia/mediawiki/commit/7b0c94fb0be44be33393e34cf8bc73798105f78e
 upstream: https://github.com/wikimedia/mediawiki/commit/5d5a3c0720520f75e723d3b5a37e793a6e674e4f
upstream_mediawiki: released (1:1.35.5-1)
trusty_mediawiki: not-affected (code not present)
xenial_mediawiki: DNE
bionic_mediawiki: not-affected (code not present)
focal_mediawiki: not-affected (code not present)
hirsute_mediawiki: ignored (reached end-of-life)
impish_mediawiki: needed
jammy_mediawiki: not-affected (1:1.35.5-1)
devel_mediawiki: not-affected (1:1.35.5-1)