Quick answers
- Is CVE-2026-109167 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-109167 being exploited in the wild.
- How severe is CVE-2026-109167?
- Medium severity, with a CVSS score of 4.3, published 12 October 2026.
- Which products and versions are affected?
- Tduckcloud Tduck-Survey-Form through 6.0.
- Is there a fix for CVE-2026-109167?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-109167 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-109167?
- Check whether you run Tduckcloud Tduck-Survey-Form at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The saveFormTheme handler contains an insecure direct object reference (IDOR) vulnerability that allows authenticated users to specify arbitrary theme IDs in the request body. The handler validates the formKey but does not verify that the supplied theme ID belongs to the authenticated user, allowing an attacker to update another user's fm_user_form_theme database row and repoint it to their own form.
Affected products
- TDuckCloud tduck-survey-form through 6.0
Timeline
- 2026-10-12: disclosed: CVE-2026-109167 published