Wikimedia Foundation MediaWiki Quiz Extension Stored Cross-Site Scripting Vulnerability

A stored cross-site scripting vulnerability has been identified in the Wikimedia Foundation MediaWiki Quiz Extension. This issue arises from improper input neutralization during web page generation, allowing malicious scripts to be embedded and potentially executed. The vulnerability affects MediaWiki Quiz Extension versions 1.39.X prior to 1.39.13, 1.42.X prior to 1.42.7, and 1.43.X prior to 1.43.2.

Impact

Exploitation of this vulnerability allows for stored cross-site scripting, where injected scripts are executed in the context of the user viewing the page.