CVE-2020-35475

Description

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

https://www.debian.org/security/2020/dsa-4816

https://phabricator.wikimedia.org/T268917

https://lists.wikimedia.org/pipermail/mediawiki-announce/2020-December/000268.html

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/STT5Z4A3BCXVH3WIPICWU2FP4IPIMUPC/

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3