CVE Catalog

CVE-2026-39969

MediumCVSS 6.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.14%

4th percentile - higher than 4% of all known CVEs

Summary

TypeBot, a chatbot builder tool, in versions 3.16.0 and prior does not verify the x-hub-signature-256 HMAC signature in WhatsApp Cloud API webhooks. Additionally, workspaceId and credentialsId are exposed in logs and Meta dashboard, allowing unauthenticated attackers to send spoofed webhook messages, trigger bots, and consume API resources.

Risk Assessment

Risk includes unauthorized API resource usage, bot triggering, and interaction with external services using the owner's credentials, potentially leading to abuse and data leakage.

Recommendation

Immediately update TypeBot to version 3.17.0 or later, which contains the fix.

Other vulnerabilities in TypeBot

See all
Original NVD description (English source)

TypeBot is a chatbot builder tool. In versions 3.16.0 and prior, the WhatsApp Cloud API webhook endpoint (POST /v1/workspaces/{workspaceId}/whatsapp/{credentialsId}/webhook) does not verify the x-hub-signature-256 HMAC signature included by Meta in every webhook delivery. The webhook URL exposes both workspaceId and credentialsId as path parameters, which are logged in web server access logs, visible in Meta's webhook configuration dashboard, and potentially shared when configuring integrations. This allows any unauthenticated attacker to send spoofed webhook messages to trigger bot flows, consume API resources, and interact with external services using the workspace owner's credentials. The issue has been fixed in version 3.17.0.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS