Wppconnect
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
CVE-2026-121557 Nov 3, 2026 Source: Vendor
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.
Source of record
The credited names below are quoted verbatim from the vendor's own advisory:
https://nvd.nist.gov/vuln/detail/CVE-2026-121557
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CVE-2026-121557
BR2026-0000-041687
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Credited as hieuPenguinnn