Is CVE-2025-66507 actively exploited?

CVE-2025-66507 has no public evidence of in-the-wild exploitation as of 2025-12-10.

What is the CVSS score for CVE-2025-66507?

CVE-2025-66507 has a CVSS score of 7.5 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

How do I patch CVE-2025-66507?

Patch guidance is available from fit2cloud security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2025-66507.

Fix CVE-2025-66507 - HIGH fit2cloud 1panel

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 Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: none
Availability: none
Weaknesses: CWE-290 CWE-602 CWE-807

Metadata

Primary Vendor: FIT2CLOUD
Published: 12/9/2025
Last Modified: 12/10/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2025-66507

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary