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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
OpnForm OpnForm
Default version status: unaffected
0 to < 2.0.2affected
pkg:github/OpnForm/OpnFormReferences
- https://github.com/OpnForm/OpnForm/issues/1259 ↗
- https://github.com/OpnForm/OpnForm ↗
- https://github.com/OpnForm/OpnForm/commit/6c67ff0a9bc0ac27ae26b32b8e108a176f8161b1 ↗
- https://github.com/OpnForm/OpnForm/releases/tag/v2.0.2 ↗
- https://www.vulncheck.com/advisories/opnform-editable-submission-secret-derivation-via-empty-hashids-salt ↗