MEDIUMCVSS v3.1 5.9Vulnerability

CVE-2026-121557

WPPConnect Server through 2.10.74 contains a missing authentication vulnerability that allows unauthenticated attackers to send WhatsApp messages by calling the Chatwoot webhook route without verifyToken middleware. Attackers who know or guess a connected session name can POST outgoing message bodies to send arbitrary texts or files from that account to any number.

Properties

Severity
MEDIUM
Nvd fetched at
2026-11-03T17:20:13.885968+00:00
Cvss score
5.9
Cvss severity
MEDIUM
Retrieved at
2026-11-03T17:21:18+00:00
Score
5.9
Last source
NVD
Cvss version
3.1
Cve id
CVE-2026-121557
Cvss vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
First seen by Signal
2026-11-03T17:21:18+00:00
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Published at
2026-11-03T16:17:28.163
Last modified
2026-11-03T16:30:49.290

Related Entities (1)

Explore deeper with Ninja Signal's threat intelligence graph

CVE-2026-121557 (CVSS v3.1 5.9) — Ninja Signal Threat Intelligence | Ninja Signal