Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1310 CNY

100%
Buy Us a Coffee

CVE-2026-39969— TypeBot: WhatsApp Webhook Endpoint Missing Signature Verification

CVSS 6.5 · Medium EPSS 0.02% · P7

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProductVersion RangeStatus
baptisteArnotypebot.io< 3.17.0affected
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2026-39969

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
TypeBot: WhatsApp Webhook Endpoint Missing Signature Verification
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
认证机制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Typebot 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Typebot是Baptiste Arnaud个人开发者的一个开源聊天机器人构建器。 Typebot 3.16.0及之前版本存在安全漏洞，该漏洞源于WhatsApp Cloud API webhook端点未验证x-hub-signature-256 HMAC签名，可能导致未认证攻击者发送伪造的webhook消息。以下版本受到影响：3.16.0及之前版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
baptisteArnotypebot.io < 3.17.0 -

II. Public POCs for CVE-2026-39969

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-39969

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-39969 (1)

Vendor Pages for CVE-2026-39969 (1)

Same Patch Batch · baptisteArno · 2026-05-22 · 11 CVEs total

CVE-2026-3371210.0 CRITICALTypeBot: Unauthenticated SSRF via isolated-vm fetch in preview chat endpoint bypasses SSRF
CVE-2026-284458.7 HIGHTypebot: Stored XSS via Rating Block Custom Icon Bypasses isUnsafe Sandbox in Builder Prev
CVE-2026-399657.7 HIGHTypeBot: SSRF via Open Redirect Bypass in HTTP Request and Code Blocks
CVE-2026-342077.6 HIGHTypeBot: SSRF Protection Bypass via DNS-Resolved Hostnames in Webhook / HTTP Request Valid
CVE-2026-399687.1 HIGHTypeBot: Cross-Workspace Credential Theft via Bot-Engine Preview Endpoint
CVE-2026-284446.5 MEDIUMTypebot: IDOR in Result Logs Endpoint Allows Cross-Workspace Data Disclosure
CVE-2026-399666.5 MEDIUMTypeBot: Async filter() bypasses authorization, allowing IDOR in getLinkedTypebots and lea
CVE-2026-399645.4 MEDIUMTypeBot: Stored XSS via javascript: URI in text bubble links — bot author executes JS on v
CVE-2026-399673.1 LOWTypeBot: Cross-Typebot Result Data Access via Missing typebotId Filter
CVE-2026-39970TypeBot: Stored Cross-Site Scripting (XSS) via SVG File Upload On Profile Picture Form

IV. Related Vulnerabilities

Same product: typebot.io
Same vendor: baptisteArno
Same weakness: CWE-287

V. Comments for CVE-2026-39969

No comments yet

Leave a comment