GHSA-G9CM-RXP7-6GV5 AVideo: HTML Injection in notifySubscribers.json.php Allows Platform-Branded Phishing Emails to Channel Subscribers

Summary objects/notifySubscribers.json.php takes the raw message POST parameter and passes it into sendSiteEmail, which substitutes it directly into an HTML email template via strreplace on the message placeholder and renders it with PHPMailer::msgHTML. There is no HTML sanitization, character...