XSS in Php-Fusion Phpfusion
CVE-2020-36996
PHPFusion 9.03.50 contains a persistent cross-site scripting vulnerability in the print.php page that fails to properly sanitize user-submitted message content. Attackers can inject malicious JavaScript through forum messages that will execute when the print page is generated, allowing script execution in victim browsers.
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: 0.003 (16.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 16.0% 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: 0.003 · change: +0.000
Affected products
- Php-Fusion Phpfusion — versions 0
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/48497 (exploit)
- www.php-fusion.co.uk/home.php (product)
- www.php-fusion.co.uk/php_fusion_9_downloads.php (product)
- www.vulncheck.com/advisories/phpfusion-persistent-cross-site-scripting (third-party-advisory)
Frequently asked questions
- What is CVE-2020-36996?
- CVE-2020-36996 is a medium-severity vulnerability in Php-Fusion Phpfusion, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-01-30.
- How severe is CVE-2020-36996?
- Medium severity. CVSS v3 base score is 6.4 out of 10.