CVE-2026-4990
chatwoot Signup Endpoint login improper authorization
- State
- Published
- Severity
- 6.9 Medium
- Published
- Mar 27, 2026
- Updated
- Mar 31, 2026
- Reserved
- Mar 27, 2026
Description
A security vulnerability has been detected in chatwoot up to 4.11.1. The affected element is an unknown function of the file /app/login of the component Signup Endpoint. Such manipulation of the argument signupEnabled with the input true leads to improper authorization. The attack can be executed remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 7.3 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 7.3 High | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 7.5 High | AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
chatwootn/a |
|
References
- VDB-353877 | chatwoot Signup Endpoint login improper authorizationvdb-entrytechnical-description
- VDB-353877 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- Submit #772515 | chatwoot 4.11.1 Business Logic Errorsthird-party-advisory
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