CVE-2020-37137: PHP-Fusion 9.03.50 contains a remote code execution vulnerability in the 'add_panel_form()' function that allo

Routine

MEDIUM 6.1DOWNGRADE

CVE-2020-37137 is a medium-severity flaw (CVSS 6.1) affecting phpfusion. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.6% (top 50%)
CISA exploited list	No
Weakness	CWE-95, CWE-94
Published	2026-02-05
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: php-fusion

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-02-05 17:16 UTCPublished CVE record published
2026-06-17 03:17 UTCUpdated Record last modified

php-fusion phpfusion DOWNGRADE

Affected: 9.03.50

Fixed in: no fixed release known

Safe to downgrade to: a release before 9.03.50

1. Check installed version

apt-cache policy phpfusion || rpm -q phpfusion || phpfusion --version

2. No fixed release: DOWNGRADE to a release before 9.03.50 (Debian / Ubuntu)

apt-cache madison phpfusion sudo apt install phpfusion=<VERSION_BEFORE_9.03.50> sudo apt-mark hold phpfusion

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list phpfusion sudo dnf downgrade phpfusion-<VERSION_BEFORE_9.03.50> sudo dnf versionlock add phpfusion

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-37137?

phpfusion: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-37137 being exploited?

CVE-2020-37137 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-37137 affect?

CVE-2020-37137 affects phpfusion. Severity is medium (CVSS 6.1). 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 vulnerabil

How urgent is CVE-2020-37137?

Priority 39/100. Public exploit reference

Software pages

PHP vulnerabilities

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CVE-2020-37152 MEDIUM 6.1 DOWNGRADE PHP-Fusion 9.03.50 panels.php is vulnerable to cross-site scripting (XSS) via the 'panel_content' POST paramet

References

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