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Vulnerabilities

Vulnerability · 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.

Published Jan 13, 2026 · catalog updated May 24, 2026 · YouPHPTube YouPHPTube

Last checked Oct 29, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2021-47750. EPSS is 0.36%. Act only if a listed version of YouPHPTube YouPHPTube is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.36%
Remediation
Vendor / distro source
Affected products
vendor YouPHPTube YouPHPTube 0 ≤7.8

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor YouPHPTube YouPHPTube 0 ≤7.80 ≤7.8

How to fix CVE-2021-47750

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2021-47750. EPSS is 0.36%. Act only if a listed version of YouPHPTube YouPHPTube is installed.

Which versions are affected?

Compare what you have installed with YouPHPTube YouPHPTube 0 ≤7.8 0 ≤7.8. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.36%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jan 13, 2026 · EUVD

    Detected

    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.

  2. May 24, 2026 · EUVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2021-47750

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2021-47750

    30-day exploitation probability 0.36%

    first.org
  • EUVDVulnerability recordEUVD-2026-2653

    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' br

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 29, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgOct 29, 2026
  • FIRST EPSSOct 29, 2026
  • EUVDOct 29, 2026