What is CVE-2025-66508?

CVE-2025-66508 is a medium-severity vulnerability in 1panel-dev 1panel, classified under Authentication Bypass by Spoofing. CVSS score: 6.5/10. Published 2025-12-09.

How severe is CVE-2025-66508?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in 1panel-dev 1panel

CVE-2025-66508

1Panel is an open-source, web-based control panel for Linux server management. Versions 2.0.14 and below use Gin's default configuration which trusts all IP addresses as proxies (TrustedProxies = 0.0.0.0/0), allowing any client to spoof th…

EPSS: 0.002 (10.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

1panel-dev 1panel — versions < 2.0.14
Fit2cloud 1panel

Weakness classification (CWE)

CWE-290 — Authentication Bypass by Spoofing

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2025-66508?: CVE-2025-66508 is a medium-severity vulnerability in 1panel-dev 1panel, classified under Authentication Bypass by Spoofing. CVSS score: 6.5/10. Published 2025-12-09.
How severe is CVE-2025-66508?: Medium severity. CVSS v3 base score is 6.5 out of 10.