CVE-2026-4990— chatwoot Signup Endpoint login improper authorization
Quick assessment
Affected
n/a chatwoot
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Chatwoot是Chatwoot开源的一个应用软件。客户参与套件，对讲、Zendesk、Salesforce 服务云等的开源替代方案。 Chatwoot 4.11.1及之前版本存在安全漏洞，该漏洞源于对参数signupEnabled的错误操作导致授权不当。
Possible ATT&CK Techniques 1 AI
T1078 · Valid Accounts
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I. Basic Information for CVE-2026-4990
Vulnerability Information
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Vulnerability Title
chatwoot Signup Endpoint login improper authorization
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Chatwoot 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Chatwoot是Chatwoot开源的一个应用软件。客户参与套件，对讲、Zendesk、Salesforce 服务云等的开源替代方案。 Chatwoot 4.11.1及之前版本存在安全漏洞，该漏洞源于对参数signupEnabled的错误操作导致授权不当。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | chatwoot | 4.11.0 | - |
|
II. Public POCs for CVE-2026-4990
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-4990 (2)
-
Submit #772515: chatwoot 4.11.1 Business Logic Errors third-party-advisory
-
Same Patch Batch · n/a · 2026-03-27 · 26 CVEs total
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| CVE-2026-30533 | SourceCodester Online Food Ordering System 安全漏洞 | |
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Showing top 20 of 26 CVEs. View all on vendor page → →
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