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MyBB MyYoutube Plugin HTML Injection Vulnerability

MyYoutube plugin for MyBB is prone to an HTML-injection vulnerability because it fails to properly sanitize user-supplied input.

Attacker-supplied HTML or JavaScript code could run in the context of the affected site, potentially allowing the attacker to steal cookie-based authentication credentials and to control how the site is rendered to the user; other attacks are also possible.

MyYoutube 1.0 is vulnerable; other versions may also be affected.