VULNERABILITY INTELLIGENCE
CVE-2026-75106
CVSS score9.1 CRITICAL
EPSS probability0.40%
CISA KEVNot currently listed
Published2026-08-17
Last modified2026-10-01
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Description
OpnForm derives editable-submission secrets from sequential row identifiers using Hashids with an empty default salt, allowing unauthenticated attackers to compute hashes for any submission. Attackers can read other respondents' full submission data through the submission-fetch endpoint or overwrite submissions by supplying predicted hashes to the answer endpoint.
Weakness classification
- disclosure@vulncheck.com: CWE-340