Description
MediaWiki before 1.35.1 allows XSS via BlockLogFormatter.php. Language::translateBlockExpiry itself does not escape in all code paths. For example, the return of Language::userTimeAndDate is is always unsafe for HTML in a month value. This affects MediaWiki 1.12.0 and later.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- https://phabricator.wikimedia.org/T268938 ↗
- https://lists.wikimedia.org/pipermail/mediawiki-announce/2020-December/000268.html ↗
- https://www.debian.org/security/2020/dsa-4816 ↗
- https://lists.debian.org/debian-lts-announce/2020/12/msg00034.html ↗
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/STT5Z4A3BCXVH3WIPICWU2FP4IPIMUPC/ ↗