CVE-2026-75106Critical· 9.1▾ AbyssalPoC availableOpnForm 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 sub…
▾ Abyssal zone — Critical with a public exploit or in-the-wild use
impact 50.1 · likelihood 0.1 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 24.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.5%
Last analysed / modified upstream
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.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2025-11442Medium· 4.3A security flaw has been discovered in JhumanJ OpnForm up to 1.9.3
CVE-2025-11443Low· 3.7A weakness has been identified in JhumanJ OpnForm up to 1.9.3
CVE-2025-11439Medium· 4.3A vulnerability was found in JhumanJ OpnForm up to 1.9.3
CVE-2025-11440Medium· 4.3A vulnerability was determined in JhumanJ OpnForm up to 1.9.3
CVE-2025-11441Low· 3.7A vulnerability was identified in JhumanJ OpnForm up to 1.9.3
CVE-2025-11436Medium· 6.3A vulnerability was detected in JhumanJ OpnForm up to 1.9.3