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.

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)

EPSS: 0.002 (13.3th percentile) — read the EPSS interpretation.

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.

Affected products

Php-fusion Phpfusion — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

disclosure@vulncheck.com (exploit)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (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.