{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-100306 exists.","fix":"No fix has been published for CVE-2026-100306 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-100306 is a medium-severity authentication bypass vulnerability in TDuckCloud tduck-survey-form, published on 25 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-100306 and fix it if it is affected.\n\nWhat it is: CVE-2026-100306 is a medium-severity authentication bypass vulnerability in TDuckCloud tduck-survey-form, published on 25 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-100306 exists.\n\nAffected product: TDuckCloud tduck-survey-form. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-100306/ (Markdown: https://insights.sbomify.com/CVE-2026-100306/index.md)","id":"CVE-2026-100306","markdown":"https://insights.sbomify.com/CVE-2026-100306/index.md","name":"CVE-2026-100306","record":{"aliases":["GHSA-5966-7cgr-qvf4"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Survey form application","requires_auth":"none","summary":"Remote attackers can bypass write password protection and submit survey entries by directly accessing public submission APIs.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-602","name":"Client-Side Enforcement of Server-Side Security"}],"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"TDuck survey form through 6.0 Write Password Bypass via Client-Side Enforcement","id":"CVE-2026-100306","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"GluonTS arbitrary command execution during model deserialization","id":"CVE-2026-100308"},"packages":[],"prev":{"headline":"TDuck survey form through 6.0 Fill-In Restriction Bypass via Authenticated Submission Endpoint","id":"CVE-2026-100305"},"products":["tduck-survey-form"],"published":"2026-09-25","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-30","vendors":["TDuckCloud"]},"summary":"Remote attackers can bypass write password protection and submit survey entries by directly accessing public submission APIs.","url":"https://insights.sbomify.com/CVE-2026-100306/"}