Vulnerability in Tduckcloud Tduck-Survey-Form
CVE-2026-100306
TDuck survey form through 6.0 fails to validate write passwords on submission endpoints, enforcing the check only on the front end. Remote unauthenticated attackers can submit form entries directly to public submission APIs without providing the password by using the form key from share links.
Published .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/LinYuanyi1/cve-request-poc/blob/adffc39b78cad18cd489cbf7454853bf0f74… (exploit)
- github.com/TDuckCloud/tduck-survey-form (product)
- github.com/TDuckCloud/tduck-survey-form/blob/43ffa9c993e38936fc4de7d8e5aee82bba… (technical-description)
- github.com/TDuckCloud/tduck-survey-form/blob/43ffa9c993e38936fc4de7d8e5aee82bba… (technical-description)
- www.vulncheck.com/advisories/tduck-survey-form-through-6.0-write-password-bypas… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-100306?
- CVE-2026-100306 is a medium-severity vulnerability in Tduckcloud Tduck-Survey-Form, classified under CWE-602. CVSS score: 5.3/10. Published 2026-09-25.
- How severe is CVE-2026-100306?
- Medium severity. CVSS v3 base score is 5.3 out of 10.