CVE-2021-47750: Youphptube

Medium severity, CVSS 6.1. EPSS: 0.4% chance of exploitation in the next 30 days.

YouPHPTube <= 7.8 contains a cross-site scripting vulnerability that allows attackers to inject malicious scripts through the redirectUri parameter in the signup page. Attackers can craft special signup URLs with embedded script tags to execute arbitrary JavaScript in victims' browsers when they access the signup page.

Affected products

• Youphptube Youphptube: up to and including 7.8

Published 2026-01-13. Last modified 2026-06-17.