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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-48495 Detail

Description

TypeBot is a chatbot builder tool. Prior to version 3.17.0, the Google Sheets OAuth callback decodes a base64-encoded JSON `state` parameter and trusts the embedded `workspaceId`, `typebotId`, `blockId`, and `redirectUrl` without cryptographic integrity protection or authorization checks. The callback route is authenticated, but it does not verify that the authenticated user has write access to the target workspace or Typebot before creating credentials in the workspace or updating Typebot groups. An authenticated user who can obtain a valid Google OAuth `code` can alter the `state` value to create Google Sheets credentials in another workspace and, if target IDs are known, attach those credentials to a block in another Typebot. Version 3.17.0 patches the issue.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/baptisteArno/typebot.io/commit/c0ffd825e2f4ee2256a157fd085fb624dcede625 GitHub, Inc.
https://github.com/baptisteArno/typebot.io/pull/2501 GitHub, Inc.
https://github.com/baptisteArno/typebot.io/releases/tag/v3.17.0 GitHub, Inc.
https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-w789-9gxq-2xcj GitHub, Inc.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-862 Missing Authorization GitHub, Inc.  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-48495
NVD Published Date:
08/11/2026
NVD Last Modified:
08/11/2026
Source:
GitHub, Inc.