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 v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://web.archive.org/web/20170506141644/https://www.youphptube.com/	Not Applicable
https://www.exploit-db.com/exploits/51101	Exploit Third Party Advisory VDB Entry
https://www.vulncheck.com/advisories/youphptube-cross-site-scripting	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:youphptube:youphptube:*:*:*:*:*:*:*:*

History

22 Jan 2026, 20:27

Type	Values Removed	Values Added
CPE		cpe:2.3:a:youphptube:youphptube::::::::
First Time		Youphptube Youphptube youphptube
References	~~() https://web.archive.org/web/20170506141644/https://www.youphptube.com/ -~~	() https://web.archive.org/web/20170506141644/https://www.youphptube.com/ - Not Applicable
References	~~() https://www.exploit-db.com/exploits/51101 -~~	() https://www.exploit-db.com/exploits/51101 - Exploit, Third Party Advisory, VDB Entry
References	~~() https://www.vulncheck.com/advisories/youphptube-cross-site-scripting -~~	() https://www.vulncheck.com/advisories/youphptube-cross-site-scripting - Third Party Advisory

13 Jan 2026, 23:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-01-13 23:15

Updated : 2026-01-22 20:27

NVD link : CVE-2021-47750

Mitre link : CVE-2021-47750

CVE.ORG link : CVE-2021-47750

JSON object : View

Products Affected

youphptube

youphptube

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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