TDuck survey form through 6.0 Write Password Bypass via Client-Side Enforcement (CVE-2026-100306)

Why this deserves its current priority

CVSS is 6.9. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps TDuckCloud/tduck-survey-form (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
TDuckCloud/tduck-survey-formgeneric	>=0 <=6.0	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for TDuckCloud/tduck-survey-form.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Sep 25, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 30, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 25, 2026

Sources and claim methodology

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.

TDuck survey form through 6.0 Write Password Bypass via Client-Side EnforcementCVE-2026-100306