Formie: Unauthenticated users can overwrite incomplete submissions via submit action

Impact The anonymous front-end action formie/submissions/submit SubmissionsController::actionSubmit trusted a client-supplied submissionId when loading an incomplete submission, with no session binding, ownership check, or edit token validation. An unauthenticated attacker could enumerate...

CVE-2026-76087 Formie: Unauthenticated users can overwrite incomplete submissions via submit action

Formie is a Craft CMS plugin for creating forms. Prior to 2.2.23 and 3.1.31, Formie's anonymous formie/submissions/submit action in SubmissionsController::actionSubmit trusts a client-supplied submissionId when loading an incomplete submission without session binding, ownership validation, or a...

EUVD-2026-85547

Formie is a Craft CMS plugin for creating forms. Prior to 2.2.23 and 3.1.31, Formie's anonymous formie/submissions/submit action in SubmissionsController::actionSubmit trusts a client-supplied submissionId when loading an incomplete submission without session binding, ownership validation, or a...

PT-2026-97501

Name of the Vulnerable Software and Affected Versions Formie versions prior to 2.2.23 Formie versions prior to 3.1.31 Description The anonymous endpoint 'formie/submissions/submit' in the SubmissionsController::actionSubmit function trusts a client-supplied submissionId when loading incomplete...

CVE-2026-76087: Authorization Bypass Through User-Controlled Key

Formie is a Craft CMS plugin for creating forms. Prior to 2.2.23 and 3.1.31, Formie's anonymous formie/submissions/submit action in SubmissionsController::actionSubmit trusts a client-supplied submissionId when loading an incomplete submission without session binding, ownership validation, or a...