#VU77879 Cross-site scripting in MediaWiki - CVE-2023-37302
Published: July 3, 2023
MediaWiki
MediaWiki.org
Description
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in SiteLinksView.php in Wikibase. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Remediation
External links
- https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Wikibase/+/933649
- https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Wikibase/+/933650
- https://phabricator.wikimedia.org/T339111
- https://lists.wikimedia.org/hyperkitty/list/mediawiki-announce@lists.wikimedia.org/thread/4GNSSE2VECVOPWE2NUKWD4C5IOSSF73R/