CVE-2021-45472 Information

Description

In MediaWiki through 1.37 XSS can occur in Wikibase because an external identifier property can have a URL format that includes a $1 formatter substitution marker and the javascript: URL scheme (among others) can be used.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Reference

https://phabricator.wikimedia.org/T297570 https://gerrit.wikimedia.org/r/q/I37ece1dfdc80d38055067c9c4fa73ba591acd8bd https://lists.fedoraproject.org/archives/list/[email protected]/message/Z7JNQA53K675TQBBJPZRAG5ZT6XES3IS/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

6.1