Vulnerability · Published Nov 3, 2026 · Assigned by VulnCheck

CVE-2026-121557WPPConnect Server through 2.10.74 Missing Authentication via /api/:session/chatwoot

Medium 5.9

In plain English

A medium-severity missing authentication in wppconnect-server from wppconnect. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities).

Severity (CVSS 3.1)5.9Medium

Exploit odds (30 days)0.4%top 64.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
wppconnect	wppconnect-server	0 – through 2.10.74

Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

References

GitHub Issue #2701 issue-tracking
https://github.com/wppconnect-team/wppconnect-server product
Fix commit patch, issue-tracking
https://github.com/wppconnect-team/wppconnect-server/blob/v2.10.74/src/routes/index.ts#L963 technical-description
https://github.com/wppconnect-team/wppconnect-server/blob/v2.10.74/src/controller/deviceController.ts#L2230-L2324 technical-description
VulnCheck Advisory: WPPConnect Server through 2.10.74 Missing Authentication via /api/:session/chatwoot third-party-advisory