CVE-2020-35475

—

CVSS 3.1

7.5 high

EPSS

2%p74

Published

Dec 18, 2020 (Dec 18, 2020)

Modified

Jun 17, 2026

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.)

Vendors: mediawiki debian fedoraproject
Products: mediawiki, debian linux, fedora
Weakness: CWE-79
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (1.6%)

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