[ CVE-2026-121557 · Published 3 Nov 2026 ]
Vulnerability in wppconnect-server
CVSS 5.9
EPSS <1%No fix listed yet
[ Description ]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.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ References ]References
- github.com/wppconnect-team/wppconnect-server
- github.com/wppconnect-team/wppconnect-server/blob/v2.10.74/src/controller/deviceControl…
- github.com/wppconnect-team/wppconnect-server/blob/v2.10.74/src/routes/index.ts
- github.com/wppconnect-team/wppconnect-server/issues/2701
- github.com/wppconnect-team/wppconnect-server/pull/2702
- www.vulncheck.com/advisories/wppconnect-server-through-2.10.74-missing-authentication-v…