Vulnerability Description
1Panel is an open-source, web-based control panel for Linux server management. Versions 2.0.13 and below allow an unauthenticated attacker to disable CAPTCHA verification by abusing a client-controlled parameter. Because the server previously trusted this value without proper validation, CAPTCHA protections can be bypassed, enabling automated login attempts and significantly increasing the risk of account takeover (ATO). This issue is fixed in version 2.0.14.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Fit2Cloud | 1Panel | < 2.0.14 |
Related Weaknesses (CWE)
References
- https://github.com/1Panel-dev/1Panel/commit/ac43f00273be745f8d04b90b6e2b9c1a40efPatch
- https://github.com/1Panel-dev/1Panel/releases/tag/v2.0.14Release Notes
- https://github.com/1Panel-dev/1Panel/security/advisories/GHSA-qmg5-v42x-qqhqVendor Advisory
FAQ
What is CVE-2025-66507?
CVE-2025-66507 is a vulnerability with a CVSS score of 7.5 (HIGH). 1Panel is an open-source, web-based control panel for Linux server management. Versions 2.0.13 and below allow an unauthenticated attacker to disable CAPTCHA verification by abusing a client-controlle...
How severe is CVE-2025-66507?
CVE-2025-66507 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-66507?
Check the references section above for vendor advisories and patch information. Affected products include: Fit2Cloud 1Panel.