CVE-2026-4990

HIGH

chatwoot Signup Endpoint login improper authorization

Title source: cna
STIX 2.1

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 v3 7.3
EPSS 0.0005
EPSS Percentile 15.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-266 CWE-285
Status published
Products (4)
None/chatwoot 4.11.0
None/chatwoot 4.11.1
n/a/chatwoot 4.11.0
n/a/chatwoot 4.11.1
Published Mar 27, 2026
Tracked Since Mar 29, 2026