CVE-2026-63428
בינונית 5.8
תיאור (מקור, אנגלית)
HeyForm is an open-source form builder. Prior to version 3.0.0-rc.9, `completeSubmission` accepts a `hiddenFields: [{id, name, value}]` array from the submitter and stores it verbatim in `submission.hiddenFields`, without validating the supplied `id`/`name` against the form's declared `form.hiddenFields` schema. An anonymous form submitter can therefore inject arbitrary key/value pairs (including XSS payloads, fake authorization metadata, integration-relevant values) into the stored submission. These fields are subsequently forwarded as-is to every webhook integration registered on the form. Version 3.0.0-rc.9 contains a patch for the issue.
מדדים
- CVSS 3.1
-
5.8 (MEDIUM)
מקור הציון: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N - EPSS — סבירות ניצול
- 0% (אחוזון 000) נכון ל-2/8/2026
- CWE
- CWE-20, CWE-915