Wikimedia Foundation MediaWiki FeaturedFeeds Extension Cross-Site Scripting Vulnerability

A Cross-Site Scripting (XSS) vulnerability has been identified in the Wikimedia Foundation MediaWiki FeaturedFeeds Extension, specifically in versions 1.39.X, 1.42.X, and 1.43.X. This vulnerability arises from improper input validation, allowing malicious users to inject harmful scripts that could be executed in the context of the user's browser.

Impact

Exploitation of this vulnerability allows for Cross-Site Scripting (XSS) attacks, where an attacker can inject malicious scripts that are executed in the context of the victim's browser.