CVE-2024-34500

An issue was discovered in the UnlinkedWikibase extension in MediaWiki before 1.39.6, 1.40.x before 1.40.2, and 1.41.x before 1.41.1. XSS can occur through an interface message. Error messages (in the $err var) are not escaped before being passed to Html::rawElement() in the getError() function in the Hooks class.

Score

CVSS 3.1 6.1 Medium

Status

Modified - cve@mitre.org

Published

2024-05-05

Last modified

2025-11-04

Weaknesses

CWE-79

Affected products

• Fedora (Fedoraproject)
• Mediawiki (Mediawiki)

References

• https://gerrit.wikimedia.org/r/c/mediawiki/extensions/UnlinkedWikibase/+/1002175
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FU2FGUXXK6TMV6R52VRECL…
• https://phabricator.wikimedia.org/T357203
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FU2FGUXXK6TMV6R52VRECLC6…