CVE-2021-47913

MEDIUM 6.4

PHP Melody 3.0 Persistent Cross-Site Scripting via Video Editor

CVSS Score

6.4

EPSS Score

0.0%

EPSS Percentile

0th

PHP Melody 3.0 contains a persistent cross-site scripting vulnerability in the video editor that allows privileged users to inject malicious scripts. Attackers can exploit the WYSIWYG editor to execute persistent scripts, potentially leading to session hijacking and application manipulation.

CWE	CWE-79
Vendor	phpsugar
Product	php melody
Published	Feb 1, 2026
Last Updated	Mar 5, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

PHPSUGAR / PHP Melody

3.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vulnerability-lab.com: https://www.vulnerability-lab.com/get_content.php?id=2291 phpsugar.com: https://www.phpsugar.com/blog/2021/09/php-melody-3-0-vulnerability-report-fix/ phpsugar.com: https://www.phpsugar.com/phpmelody.html vulncheck.com: https://www.vulncheck.com/advisories/php-melody-persistent-cross-site-scripting-via-video-editor

Credits

Vulnerability-Lab [Research Team]