CVE-2026-4990CWE-266CWE-285

chatwoot Signup Endpoint login improper authorization

Medium · published March 27, 2026

CVSS v4.0
6.9
EPSS
0%
Percentile
38.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
Vector
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
EPSS
0.00457 · 38.7th percentile
Weaknesses
CWE-266 · Incorrect Privilege Assignment; CWE-285 · Improper Authorization
Published
2026-03-27T21:27Z
EPSS history
Timeline
  • 27 MAR 21:27Z
    chatwoot Signup Endpoint login improper authorization
    cvelistv5