| Package | Affected versions | Patched versions |
|---|---|---|
| wikibase/wikibase | ≤ 1.39.3 | |
| mediawiki | ≤ 1.39.3 |
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).
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