VDB
CVE-2020-35475
CVE-2020-35475
PUBLISHED
CVSS 7.5 HIGH
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.)
EPSS 1.59% · 75.5th percentile
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score
1.59%
75.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:24.04:LTS | mediawiki | 0, 1:1.39.4-2, 1:1.39.5-1 |
| Ubuntu:20.04:LTS | mediawiki | 1:1.31.5-3, 1:1.31.5-3ubuntu1, 1:1.31.2-1ubuntu1 |
| Ubuntu:22.04:LTS | mediawiki | 1:1.35.5-1ubuntu3, *, * |
| Ubuntu:25.10 | mediawiki | 1:1.43.1+dfsg-1, 0, 1:1.43.1+dfsg-2 |
| Ubuntu:18.04:LTS | mediawiki | 0, 1:1.27.4-2, * |
Timeline
- Dec 18, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Oct 28, 2021 EPSS Score
- Dec 30, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 5, 2022 EPSS Score
- Jul 7, 2022 EPSS Score
- Sep 10, 2022 EPSS Score
- Jan 14, 2023 EPSS Score
References
- https://phabricator.wikimedia.org/T268917 third-party-advisory
- https://lists.wikimedia.org/pipermail/wikitech-l/2020-December/094126.html third-party-advisory
- https://lists.wikimedia.org/pipermail/mediawiki-announce/2020-December/000268.html third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-35475 third-party-advisory
- https://ubuntu.com/security/CVE-2020-35475 advisory