RCE in PHP Fusion

CVE-2020-37137

PHP-Fusion 9.03.50 contains a remote code execution vulnerability in the 'add_panel_form()' function that allows attackers to execute arbitrary code through an eval() function with unsanitized POST data. Attackers can exploit the vulnerability by sending crafted panel_content POST parameters to the panels.php administration endpoint to execute malicious code.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (45.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2020-37137: held from 0.005 to 0.006.

EPSS over last 30 days · oldest: 0.005 · newest: 0.006 · change: +0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2020-37137?
CVE-2020-37137 is a medium-severity vulnerability in PHP Fusion, classified under Eval Injection. CVSS score: 6.1/10. Published 2026-02-05.
How severe is CVE-2020-37137?
Medium severity. CVSS v3 base score is 6.1 out of 10.