Description

An issue was discovered in SiteLinksView.php in Wikibase in MediaWiki through 1.39.3. There is XSS via a crafted badge title attribute. This is also related to lack of escaping in wbTemplate (from resources/wikibase/templates.js) for quotes (which can be in a title attribute).

Classification

CVE ID: CVE-2023-37302

CVSS Base Severity: LOW

CVSS Base Score: 0.0

Affected Products

Vendor: n/a

Product: n/a

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.08% (probability of being exploited)

EPSS Percentile: 35.66% (scored less or equal to compared to others)

EPSS Date: 2025-02-03 (when was this score calculated)

References

https://phabricator.wikimedia.org/T339111
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Wikibase/+/933649
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Wikibase/+/933650

Timeline