Vulnerability · Published Dec 9, 2025 · Assigned by GitHub_M
CVE-2025-665071Panel – CAPTCHA Bypass via Client-Controlled Flag
High 7.5
In plain English
A high-severity authentication bypass by spoofing in 1Panel from 1Panel-dev. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/1Panel-dev/1Panel | 2.0.14 | GHSA-qmg5-v42x-qqhq |
| Go | github.com/1Panel-dev/1Panel | 2.0.14+incompatible | GO-2025-4209 |
| Go | github.com/1Panel-dev/1Panel/core | 0.0.0-20251128030527-ac43f00273be | GHSA-qmg5-v42x-qqhq |
| Go | github.com/1Panel-dev/1Panel/core | 0.0.0-20251128030527-ac43f00273be | GO-2025-4209 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| 1Panel-dev | 1Panel | < 2.0.14 |
Weakness: CWE-602, CWE-807, CWE-290 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N