What’s Vulnerable › Vulnerabilities

CVE-2026-47704: TypeBot vulnerable to cross-typebot webhook resume via unchecked `resultId` lineage allows unauthorized control of another bot's waiting session

• Severity: high (CVSS 7.1 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-11 · updated 2026-10-23
• Weakness: CWE-639

Description

TypeBot is a chatbot builder tool. Prior to version 3.17.0, an authenticated user who has read access to any typebot can resume a waiting webhook session that belongs to a different typebot by mixing an authorized `typebotId` and `blockId` and a foreign live `resultId`. The webhook resume handler authorizes the parent typebot first, but then resolves the descendant `result` only by `resultId`. As a result, an attacker can inject arbitrary webhook JSON into another typebot's suspended session and advance its execution without any access to the victim typebot. Version 3.17.0 patches the issue.

Affected products

• baptisteArno typebot.io: before 3.17.0

References

• https://github.com/baptisteArno/typebot.io/commit/6f915c3096bd43d4a913f0f2c7a92e8463f81a86
• https://github.com/baptisteArno/typebot.io/pull/2494
• https://github.com/baptisteArno/typebot.io/releases/tag/v3.17.0
• https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-h67g-6q6g-58cj

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