CVE-2022-21710 MEDIUM

CVE-2022-21710: Cross-site Scripting in ShortDescription extension

Vendor Starcitizentools
Product mediawiki-extensions-ShortDescription
Weakness CWE-79 · XSS
Published January 24, 2022
Last update April 22, 2025
View on NVD All CVEs

CVSS base score

4.7/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

January 24, 2022 CVE published
April 22, 2025 Record updated