CVE-2026-109165

MediumCVSS 4.3/10Last modified Oct 16, 2026

Description

TDuck survey form through 6.0 contains a broken access control vulnerability that allows authenticated users to add fields to other users' forms via POST /user/form/item/batch/create. Attackers can submit an array whose first element references their own form and later elements reference a victim's formKey, injecting attacker-chosen fields onto the victim's public fill page.

Metrics

CVSS 3.1 4.3/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Weakness enumeration

CWE-639

Affected software

No affected versions have been published.

Timeline

Published
Oct 12, 2026
Last modified
Oct 16, 2026
NVD status
Deferred

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CVE-2026-109165: Medium severity, CVSS 4.3 | Vulnix