Cross-site scripting (XSS) vulnerability in includes/options-profiles.php in the YouTube Embed plugin before 3.3.3 for WordPress allows remote administrators to inject arbitrary web script or HTML via the Profile name field (youtube_embed_name parameter).

The YouTube Embed WordPress plugin before 5.2.2 does not validate, escape or sanitise some of its shortcode attributes, leading to Stored XSS issues by 1. using w, h, controls, cc_lang, color, language, start, stop, or style parameter of youtube shortcode, 2. by using style, class, rel, target, width, height, or alt parameter of youtube_thumb shortcode, or 3. by embedding a video whose title or description contains XSS payload (if API key is configured).