In MediaWiki before 1.35.1, the messages userrights-expiry-current and userrights-expiry-none can contain raw HTML. XSS can happen when a user visits Special:UserRights but does not have rights to change all userrights, and the table on the left side has unchangeable groups in it. (The right column with the changeable groups is not affected and is escaped correctly.)
References
Link | Resource |
---|---|
https://phabricator.wikimedia.org/T268917 | Issue Tracking Third Party Advisory |
https://lists.wikimedia.org/pipermail/mediawiki-announce/2020-December/000268.html | Mailing List Release Notes Vendor Advisory |
https://www.debian.org/security/2020/dsa-4816 | Third Party Advisory |
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/STT5Z4A3BCXVH3WIPICWU2FP4IPIMUPC/ | Mailing List Third Party Advisory |
Information
Published : 2020-12-18 00:15
Updated : 2022-04-08 07:19
NVD link : CVE-2020-35475
Mitre link : CVE-2020-35475
JSON object : View
CWE
CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Products Affected
debian
- debian_linux
fedoraproject
- fedora
mediawiki
- mediawiki