Candidate: CVE-2020-25812
PublicDate: 2020-09-27 21:15:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25812
 https://lists.wikimedia.org/pipermail/wikitech-l/2020-September/093888.html
 https://phabricator.wikimedia.org/T255918
 https://gerrit.wikimedia.org/g/mediawiki/core/+/ad4a3ba45fb955aa8c0eb3c83809b16b40a498b9/includes/specials/SpecialContributions.php#592
 https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.html
 https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.html
Description:
 An issue was discovered in MediaWiki 1.34.x before 1.34.4. On
 Special:Contributions, the NS filter uses unescaped messages as keys in the
 option key for an HTMLForm specifier. This is vulnerable to a mild XSS if
 one of those messages is changed to include raw HTML.
Ubuntu-Description:
Notes:
Mitigation:
Bugs:
Priority: medium
Discovered-by:
Assigned-to:
CVSS:
 nvd: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N [6.1 MEDIUM]


Patches_mediawiki:
upstream_mediawiki: released (1:1.35.0-1)
precise/esm_mediawiki: DNE
trusty_mediawiki: ignored (out of standard support)
trusty/esm_mediawiki: DNE
xenial_mediawiki: DNE
bionic_mediawiki: needs-triage
focal_mediawiki: needs-triage
groovy_mediawiki: not-affected (1:1.35.0-1)
hirsute_mediawiki: not-affected (1:1.35.0-1)
impish_mediawiki: not-affected (1:1.35.0-1)
jammy_mediawiki: not-affected (1:1.35.0-1)
devel_mediawiki: not-affected (1:1.35.0-1)