CVE-2026-48494
HighCVSS 7.1Exploitation Probability (EPSS)
Low risk27th percentile - higher than 27% of all known CVEs
Summary
TypeBot version 3.16.1 allows an authenticated user with read access to any typebot to resume a WhatsApp preview webhook session that belongs to a different typebot by mixing an authorized `typebotId` and `blockId` and a foreign preview phone number tied to another preview session. The WhatsApp test-webhook handler authorizes the parent typebot first, but then resolves the preview chat session only by `wa-preview-{phone}`. As a result, an attacker can inject arbitrary webhook JSON into another workspace's WhatsApp preview session and advance its draft/unpublished flow without any access to the victim typebot.
Risk Assessment
The attack can lead to manipulation of chat flows in other workspaces, potentially compromising data integrity and enabling further social engineering attacks.
Recommendation
Update TypeBot to version 3.17.0 or later and restrict read access to typebots to trusted users only.
Original NVD description (English source)
TypeBot is a chatbot builder tool. In version 3.16.1, an authenticated user who has read access to any typebot can resume a WhatsApp preview webhook session that belongs to a different typebot by mixing an authorized `typebotId` and `blockId` and a foreign preview phone number tied to another preview session. The WhatsApp test-webhook handler authorizes the parent typebot first, but then resolves the preview chat session only by `wa-preview-{phone}`. As a result, an attacker can inject arbitrary webhook JSON into another workspace's WhatsApp preview session and advance its draft/unpublished flow without any access to the victim typebot. Version 3.17.0 patches the issue.