CVE-2026-57440 Mediawiki EmbedVideo Extension has stored XSS via malformed src url with $wgEmbedVideoRequireConsent disabled

The EmbedVideo Extension is a MediaWiki extension which adds a parser function called ev and various parser tags for embedding video clips from various video sharing services. Prior to 4.1.0, with $wgEmbedVideoRequireConsent disabled not the default, the urls for videos are passed into an iframe...