VDB-335085 · CVE-2025-66507 · GCVE-0-2025-66507

1Panel-dev 1Panel up to 2.0.13 CAPTCHA client-side enforcement of server-side security

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.3	$0-$5k	0.00

Summaryinfo

A vulnerability identified as problematic has been detected in 1Panel-dev 1Panel up to 2.0.13. This vulnerability affects unknown code of the component CAPTCHA Handler. Performing a manipulation results in client-side enforcement of server-side security. This vulnerability is known as CVE-2025-66507. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in 1Panel-dev 1Panel up to 2.0.13. It has been classified as problematic. This affects some unknown functionality of the component CAPTCHA Handler. The manipulation with an unknown input leads to a client-side enforcement of server-side security vulnerability. CWE is classifying the issue as CWE-602. The product is composed of a server that relies on the client to implement a mechanism that is intended to protect the server. This is going to have an impact on confidentiality. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2025-66507 since 12/03/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

Upgrading to version 2.0.14 eliminates this vulnerability.

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Productinfo

Vendor

1Panel-dev

Name

1Panel

Version

Website

Product: https://github.com/1Panel-dev/1Panel/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (GitHub_M): 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Client-side enforcement of server-side security
CWE: CWE-602
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: 1Panel 2.0.14

Timelineinfo

12/03/2025 CVE reserved
12/09/2025 +6 days Advisory disclosed
12/09/2025 +0 days VulDB entry created
12/09/2025 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2025-66507 (🔒)
GCVE (CVE): GCVE-0-2025-66507
GCVE (VulDB): GCVE-100-335085

Entryinfo

Created: 12/09/2025 11:58
Changes: 12/09/2025 11:58 (63)
Complete: 🔍
Cache ID: 216::103