CVE-2026-111621CWE-639

CVE-2026-111621

Medium · published October 16, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
15.5
In the wild
Unconfirmed
What it is

TDuck Survey Form through 5.3 contains a missing authorization vulnerability that allows any authenticated user to read other owners' raw form settings via GET /user/form/setting/{key}. Attackers can supply the 8-character form key from a public fill link to obtain the form write password, owner notification e-mail, and WeChat openIds.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00251 · 15.5th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-10-16T22:17Z
References (5)
https://github.com/TDuckCloud/tduck-survey-form · [email protected]https://github.com/TDuckCloud/tduck-survey-form/blob/5.3/tduck-api/src/main/java/com/tduck/cloud/api/web/controller/UserFormSettingController.java#L66-L75 · [email protected]https://github.com/TDuckCloud/tduck-survey-form/commit/984efd69f51778e3d1a9ea0feb0f7c9aed266c18 · [email protected]https://hackmd.io/@hieuPenguinnn/tduck-survey-form-setting-cross-user-disclosure · [email protected]https://www.vulncheck.com/advisories/tduck-survey-form-through-5.3-missing-authorization-via-user-form-setting-key · [email protected]
EPSS history
Timeline
  • 18 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 16 OCT 17:38Z
    TDuck Survey Form through 5.3 Missing Authorization via /user/form/setting/{key}
    cvelistv5
  • 16 OCT 17:38Z
    TDuck Survey Form through 5.3 Missing Authorization via /user/form/setting/{key}
    cvelistv5