CVE-2026-109164

TDuck survey form through 6.0 Authorization Bypass via User-Controlled Submission IDs in POST /user/form/data/delete/{formKey}

HIGH
7.1
CVSS Score
Published: October 12, 2026 at 01:10 PM UTC
Updated: October 26, 2026 at 05:17 PM UTC
1 product affected across 1 vendorTDuck Survey Form

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Severity
HIGH7.1
Exploit prediction
EPSS 0.3%
SSVC
PoC

Description

TDuck survey form through 6.0 contains an insecure direct object reference vulnerability that allows authenticated users to delete other users' form submissions by supplying arbitrary submission ids. Attackers can place their own formKey in the path and iterate sequential submission ids in the request body to permanently delete submissions platform-wide.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHVulnCheck
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-639

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