CVE-2021-47750 - CVE House
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Status published Medium CVE-2021-47750

YouPHPTube <= 7.8 - Cross-Site Scripting

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Rafael Pedrero

References

More from YouPHPTube

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CVE-2021-47749
YouPHPTube <= 7.8 - Directory Traversal
High 8.7

Affected Vendor

Affected Software

YouPHPTube
Vulnerable Versions:
0

Timeline

Official Publish: January 13th, 2026
Last Modified: May 24th, 2026
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weaknesses (CWE)

CWE-79

MITRE ATT&CK TTPs

T1189 Drive-by Compromise
Initial Access
T1059.007 JavaScript
Execution
T1539 Steal Web Session Cookie
Collection
T1213 Data from Information Repositories
Collection
T1567 Exfiltration Over Web Service
Exfiltration
T1491.001 Defacement
Impact