1Panel – CAPTCHA Bypass via Client-Controlled Flag

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-66507
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-12-09 16:18:19 UTC
Updated2026-10-14 21:10:00 UTC
Description1Panel 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.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.004670000 probability, percentile 0.388850000 (date 2026-10-14)

Problem Types: CWE-290 | CWE-602 | CWE-807 | CWE-602 CWE-602: Client-Side Enforcement of Server-Side Security | CWE-807 CWE-807: Reliance on Untrusted Inputs in a Security Decision | CWE-290 CWE-290: Authentication Bypass by Spoofing

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
3.1CNADECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Fit2cloud 1panel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA 1Panel-dev 1Panel affected < 2.0.14 Not specified

References

ReferenceSourceLinkTags
github.com/1Panel-dev/1Panel/commit/ac43f00273be745f8d04b90b6e2b9c1a40ef... [email protected] github.com Patch
github.com/1Panel-dev/1Panel/security/advisories/GHSA-qmg5-v42x-qqhq [email protected] github.com Vendor Advisory
github.com/1Panel-dev/1Panel/releases/tag/v2.0.14 [email protected] github.com Release Notes
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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