XSS in Phpsugar PHP Melody
CVE-2021-47913
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (12.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 12.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- Phpsugar PHP Melody — versions 3.0
- Phpsugar PHP Melody — versions 3.0
Weakness classification (CWE)
References
- www.vulnerability-lab.com/get_content.php (Exploit, Third Party Advisory, exploit)
- www.phpsugar.com/blog/2021/09/php-melody-3-0-vulnerability-report-fix/ (patch, Vendor Advisory)
- www.phpsugar.com/phpmelody.html (Product, product)
- www.vulncheck.com/advisories/php-melody-persistent-cross-site-scripting-via-vid… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2021-47913?
- CVE-2021-47913 is a medium-severity vulnerability in Phpsugar PHP Melody, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-02-01.
- How severe is CVE-2021-47913?
- Medium severity. CVSS v3 base score is 6.4 out of 10.