CVE-2026-4990

chatwoot Signup Endpoint login improper authorization

HIGH
7.3
CVSS Score
Published: March 27, 2026 at 09:27 PM UTC
Updated: June 17, 2026 at 10:57 AM UTC
1 product affected across 1 vendorChatwoot

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Severity
HIGH7.3
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/?id.353877
SignaturePermissions Required
Source: cverecord
https://vuldb.com/?ctiid.353877
Third Party Advisory
Source: cverecord
https://vuldb.com/?submit.772515

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.3HIGHVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-285CWE-266

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