How severe is CVE-2022-21710?

This vulnerability has a severity rating of MEDIUM with a CVSS score of 6.1 out of 10.

What type of vulnerability is CVE-2022-21710?

This is classified as CWE-79, which is a common weakness in software security.

CVE-2022-21710 - MEDIUM Severity | CVSS 6.1

Vulnerability 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.

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