CVE-2026-121557

Dashboard / Vulnerabilities / CVE-2026-121557

CVE-2026-121557

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

Details: 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.

References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/121xxx/CVE-2026-121557.json, https://nvd.nist.gov/vuln/detail/CVE-2026-121557, https://www.vulncheck.com/advisories/wppconnect-server-through-2.10.74-missing-authentication-via-api-session-chatwoot, https://github.com/wppconnect-team/wppconnect-server/issues/2701, https://github.com/wppconnect-team/wppconnect-server/pull/2702, https://github.com/wppconnect-team/wppconnect-server, https://github.com/wppconnect-team/wppconnect-server/blob/v2.10.74/src/controller/deviceController.ts#L2230-L2324, https://github.com/wppconnect-team/wppconnect-server/blob/v2.10.74/src/routes/index.ts#L963