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.
01
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2020-35479US | medium6.1 | — | ||
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::userTime… | ||||
02
references
External citations — patches, advisories, analysis.
- https://lists.debian.org/debian-lts-announce/2020/12/msg00034.htmlWEB
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/STT5Z4A3BCXVH3WIPICWU2FP4IPIMUPC/WEB
- https://lists.wikimedia.org/pipermail/mediawiki-announce/2020-December/000268.htmlWEB
- https://nvd.nist.gov/vuln/detail/CVE-2020-35479WEB
- https://phabricator.wikimedia.org/T268938WEB
- https://www.debian.org/security/2020/dsa-4816WEB
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