CVE-2026-121557 PUBLISHED

WPPConnect Server through 2.10.74 Missing Authentication via /api/:session/chatwoot

Assigner: VulnCheck
Reserved: 03.11.2026 Published: 03.11.2026 Updated: 03.11.2026

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.

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:L/SA:N
CVSS Score: 8.2

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	Low
Attack Requirements	Present	Availability	None	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS Score: 5.9

Attack Vector	Network	Scope	Unchanged
Attack Complexity	High	Confidentiality Impact	None
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	wppconnect
Product	wppconnect-server
Versions	Default: unaffected affected from 0 to 2.10.74 (incl.)

CVE-2026-121557 PUBLISHED

WPPConnect Server through 2.10.74 Missing Authentication via /api/:session/chatwoot

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Product Status

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Problem Types