All vulnerabilities

Servers and applications

CVE-2020-35475

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.)

Severity
High 7.5
Published
18 Dec 2020
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
1.35.1
Sources
NVD

Affected software

SoftwareAffected versions
MediaWikiServers and applications · cpe:a:mediawiki:mediawiki
  • Every version before 1.35.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2020-35475
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2020-35475