CVE-2026-92567 TDuck survey form through 5.0 Unauthorized Data Modification
Authenticated users can modify other users' survey responses due to missing ownership validation in the update endpoint.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-92567?
CVE-2026-92567 is a high-severity missing authorization vulnerability in TDuckCloud tduck-survey-form, published on 16 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
TDuck survey form through version 5.0 contains an authorization bypass vulnerability in the POST /user/form/data/update endpoint that allows authenticated users to overwrite other users' form submission data. Attackers can discover submission identifiers allocated in narrow ranges and modify arbitrary form responses containing personal data by sending update requests without ownership validation.
Weakness: CWE-639
Which versions are affected by CVE-2026-92567?
How do I fix CVE-2026-92567?
No fix has been published for CVE-2026-92567 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-92567 being exploited?
There is no known exploitation of CVE-2026-92567 in the wild and no public exploit code.
Sources
Also known as GHSA-cxpf-jm7w-39v7.