Missing Authorization Affecting verbb/formie package, versions <2.2.23>=3.0.0, <3.1.31
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published27 Sept 2026
- disclosed23 Sept 2026
- creditUnknown
Introduced: 23 Sep 2026
NewCVE-2026-76087 (opens in a new tab)How to fix?
Upgrade verbb/formie to version 2.2.23, 3.1.31 or higher.
Overview
Affected versions of this package are vulnerable to Missing Authorization via the formie/submissions/submit action. An attacker can overwrite or hijack another user's incomplete submission by supplying a crafted submissionId parameter without proper session binding, ownership validation, or edit token verification. Tampered data may be persisted and forwarded through notifications and integrations when the submission is completed. This is only exploitable if multi-page forms or save-for-later functionality is enabled.