CVE-2026-75106 (GCVE-0-2026-75106)
Vulnerability from cvelistv5
Published
2026-08-17 20:36
Modified
2026-08-21 11:21
Severity ?
9.3 (Critical) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE
  • CWE-340 - Generation of Predictable Numbers or Identifiers
Summary
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.
References
Impacted products
Vendor Product Version
OpnForm OpnForm Version: 0   ≤
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