MEDIUM6.1

GHSA-2f58-vf6g-6p8x

MediaWiki Cross-site Scripting (XSS) vulnerability

Quick fix

GHSA-2f58-vf6g-6p8x — mediawiki/core: upgrade to the fixed version with the command below.

composer require mediawiki/core:^1.34.3

Details

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().

Are you affected?

Enter the version of the package you're using.

Affected packages

Packagist/mediawiki/core

Introduced in: 1.32.0Fixed in: 1.34.3

Fixcomposer require mediawiki/core:^1.34.3

Packagist/mediawiki/core

Introduced in: 1.35.0-rc.0Fixed in: 1.35.0

Fixcomposer require mediawiki/core:^1.35.0

References

https://nvd.nist.gov/vuln/detail/CVE-2020-25815[ADVISORY]
https://gerrit.wikimedia.org/g/mediawiki/core/+/ec76e14be658187544f07c1a249a047e1a75eaf8/includes/logging/LogEventsList.php#214[WEB]
https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2020-25815.yaml[WEB]
https://github.com/wikimedia/mediawiki[PACKAGE]
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6[WEB]
https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.html[WEB]
https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.html[WEB]
https://phabricator.wikimedia.org/T256171[WEB]