Description
TDuck survey form through version 5.3 fails to validate webhook URLs or verify form ownership in the WebhookConfigController. Authenticated attackers can attach webhooks to other users' forms and exfiltrate submissions to arbitrary external or internal addresses.
References6
- github.com/TDuckCloud/tduck-survey-form
- github.com/TDuckCloud/tduck-survey-form/blob/9ad4e2dc75cdff5eac…
- github.com/TDuckCloud/tduck-survey-form/blob/9ad4e2dc75cdff5eac…
- github.com/TDuckCloud/tduck-survey-form/issues/40
- www.vulncheck.com/advisories/tduck-survey-form-through-5.3-serv…
- github.com/TDuckCloud/tduck-survey-form/issues/40
Metrics
- CVSS 3.1
-
7.1
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N - CVSS 4.0
-
7.1
HIGH
Score source: CNA
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — exploit probability
- 0% percentile: 35 · as of 8 November 2026
- CWE
- CWE-918
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.