CVE-2022-21710 Information

Description

ShortDescription is a MediaWiki extension that provides local short description support. A cross-site scripting (XSS) vulnerability exists in versions prior to 2.3.4. On a wiki that has the ShortDescription enabled XSS can be triggered on any page or the page with the action=info parameter which displays the shortdesc property. This is achieved using the wikitext SHORTDESC:<img src=x onerror=alert()>. This issue has a patch in version 2.3.4.

CVSS Vector

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

Reference

https://github.com/StarCitizenTools/mediawiki-extensions-ShortDescription/commit/bf568edd892adb8528dcb64f75dddf3eeaccc12c https://github.com/StarCitizenTools/mediawiki-extensions-ShortDescription/commit/7c86644158388620c6c858258cc4e1a8de6e48ea https://github.com/StarCitizenTools/mediawiki-extensions-ShortDescription/security/advisories/GHSA-mgcp-qw2r-6832

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