baptisteArno Typebot up to 3.17.x Custom Domain Delete handleDeleteCustomDomain.ts handleDeleteCustomDomain improper authorization

Summaryinfo

A vulnerability, which was classified as problematic, has been found in baptisteArno Typebot up to 3.17.x. Affected is the function handleDeleteCustomDomain of the file handleDeleteCustomDomain.ts of the component Custom Domain Delete Handler. Performing a manipulation results in improper authorization. This vulnerability is identified as CVE-2026-62861. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as problematic has been found in baptisteArno Typebot up to 3.17.x. This affects the function handleDeleteCustomDomain of the file handleDeleteCustomDomain.ts of the component Custom Domain Delete Handler. The manipulation with an unknown input leads to a improper authorization vulnerability. CWE is classifying the issue as CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on integrity, and availability. The summary by CVE is:

TypeBot is a chatbot builder tool. Prior to 3.18.0, any authenticated non-guest workspace member can remove another workspace's public custom domain and make typebots on that domain unavailable. The custom-domain delete handler in handleDeleteCustomDomain.ts authorizes a caller against a client-supplied workspaceId but sends the client-supplied domain name to the shared Vercel project before verifying that the domain belongs to that workspace. This issue is fixed in version 3.18.0.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-62861 since 07/14/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1548.002 for this issue.

Upgrading to version 3.18.0 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• baptisteArno

Name

• Typebot

Version

• 3.0
• 3.1
• 3.2
• 3.3
• 3.4
• 3.5
• 3.6
• 3.7
• 3.8
• 3.9
• 3.10
• 3.11
• 3.12
• 3.13
• 3.14
• 3.15
• 3.16
• 3.17

CPE 2.3info

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CPE 2.2info

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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