CVE-2020-25815

MEDIUM6.1EPSS 0.39%

MediaWiki Cross-site Scripting (XSS) vulnerability

Published: 5/24/2022Modified: 4/28/2026

Also known as:GHSA-2f58-vf6g-6p8xBIT-mediawiki-2020-25815DEBIAN-CVE-2020-25815

Description

An issue was discovered in MediaWiki 1.32.x through 1.34.x before 1.34.4. LogEventList::getFiltersDesc is insecurely using message text to build options names for an HTML multi-select field. The relevant code should use escaped() instead of text().

Affected packages (3)

Bitnami/mediawiki>= 1.32.0, < 1.34.4
Debian/mediawikifrom 0, < 1:1.35.0-1
Packagist/mediawiki/core>= 1.32.0, < 1.34.3

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	MEDIUM6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References (10)

ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2020-25815
ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2020-25815
PATCHhttps://github.com/wikimedia/mediawiki
WEBhttps://gerrit.wikimedia.org/g/mediawiki/core/+/ec76e14be658187544f07c1a249a047e1a75eaf8/includes/logging/LogEventsList.php#214
WEBhttps://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2020-25815.yaml
WEBhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6/
WEBhttps://lists.fedoraproject.org/archives/list/[email protected]/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6
WEBhttps://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.html
WEBhttps://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.html
WEBhttps://phabricator.wikimedia.org/T256171