CVE-2021-47750

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.

CVSS v4.0

5.1 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1

6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS

0.32% chance of exploitation in the next 30 days, 24th percentile

Published

2026-01-13

Updated

2026-05-24

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/51101

References

• CVE Record
• NVD entry

Related

• CVE-2021-47749
• CVE-2021-47751
• CVE-2021-47748
• CVE-2021-47752
• CVE-2021-47747
• CVE-2021-47753