What is CVE-2021-47750?

CVE-2021-47750 is a medium-severity vulnerability in Youphptube, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-01-13.

How severe is CVE-2021-47750?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Youphptube

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 ex…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (21.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Youphptube — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

disclosure@vulncheck.com (Exploit, VDB Entry, Third Party Advisory, exploit)
disclosure@vulncheck.com (product, Not Applicable)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2021-47750?: CVE-2021-47750 is a medium-severity vulnerability in Youphptube, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-01-13.
How severe is CVE-2021-47750?: Medium severity. CVSS v3 base score is 6.1 out of 10.