CVE-2026-47704CWE-639

CVE-2026-47704

published August 11, 2026

CVSS
7.1
EPSS
1%
Percentile
45.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
7.1 · NONE
CVSS v4.0
Not supplied
EPSS
0.00559 · 45.8th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-08-11T21:17Z
References (4)
EPSS history
Timeline
  • 11 AUG 16:23Z
    TypeBot vulnerable to cross-typebot webhook resume via unchecked `resultId` lineage allows unauthorized control of another bot's waiting session
    cvelistv5