An issue was discovered in the CampaignEvents extension in MediaWiki before 1.35.14, 1.36.x through 1.39.x before 1.39.6, and 1.40.x before 1.40.2. The Special:EventDetails page allows XSS via the x-xss language setting for internationalization (i18n).
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Mediawiki | — | Upgrade MediaWiki to the latest version | Jan 22, 2024 | Jan 12, 2024 |
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