vulnerability
MediaWiki: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (CVE-2020-35475)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:P/I:N/A:N) | Dec 18, 2020 | Dec 29, 2020 | Nov 26, 2024 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
Dec 18, 2020
Added
Dec 29, 2020
Modified
Nov 26, 2024
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.)
Solution
mediawiki-upgrade-1_35_1
References
- CVE-2020-35475
- https://attackerkb.com/topics/CVE-2020-35475
- URL-https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/STT5Z4A3BCXVH3WIPICWU2FP4IPIMUPC/
- URL-https://lists.wikimedia.org/pipermail/mediawiki-announce/2020-December/000268.html
- URL-https://phabricator.wikimedia.org/T268917
- URL-https://www.debian.org/security/2020/dsa-4816
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