CVE-2026-92567CWE-639

CVE-2026-92567

Medium · published September 16, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
35.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CVSS v4.0
7.1 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS
0.00423 · 35.5th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-09-16T19:19Z
References (5)
https://github.com/TDuckCloud/tduck-survey-form · [email protected]https://github.com/TDuckCloud/tduck-survey-form/blob/9ad4e2dc75cdff5eacc8be0c73f0d4db3c265d43/tduck-api/src/main/java/com/tduck/cloud/api/web/controller/UserFormResultController.java#L198-L207 · [email protected]https://github.com/TDuckCloud/tduck-survey-form/blob/9ad4e2dc75cdff5eacc8be0c73f0d4db3c265d43/tduck-form/src/main/java/com/tduck/cloud/form/service/impl/UserFormDataServiceImpl.java#L158-L167 · [email protected]https://github.com/TDuckCloud/tduck-survey-form/issues/39 · [email protected]https://www.vulncheck.com/advisories/tduck-survey-form-through-5.0-unauthorized-data-modification · [email protected]
EPSS history
Timeline
  • 18 SEP 04:02Z
    EPSS moved — → 0%
    epss
  • 16 SEP 14:40Z
    TDuck survey form through 5.0 Unauthorized Data Modification
    cvelistv5