CVE-2022-21710 — Cross-site Scripting in ShortDescription extension
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 …
Published: 2022-01-24 · CVSS: 4.7 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7