Vulnerability in wpmudev Forminator Forms – Contact Form, Payment Form & Custom Form Builder

[ Description ]Official description

The Forminator Forms – Contact Form, Payment Form & Custom Form Builder plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.57.3.1 via the 'previous_draft_id' parameter due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to delete arbitrary saved drafts belonging to other users and take over those draft identifiers by overwriting them with attacker-controlled form submissions. This requires the attacker to have obtained a victim's draft_id, which may be harvested from a shared "continue later" link; the nominally present nonce check is effectively bypassed because the nonce is publicly obtainable by any unauthenticated visitor loading a form page.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• plugins.trac.wordpress.org/browser/forminator/tags/1.57.3/library/abstracts/abstract-cl…
• plugins.trac.wordpress.org/browser/forminator/tags/1.57.3/library/abstracts/abstract-cl…
• plugins.trac.wordpress.org/browser/forminator/tags/1.57.3/library/model/class-form-entr…
• plugins.trac.wordpress.org/browser/forminator/tags/1.57.3/library/model/class-form-entr…
• plugins.trac.wordpress.org/browser/forminator/tags/1.57.3/library/modules/custom-forms/…
• plugins.trac.wordpress.org/browser/forminator/tags/1.57.3/library/modules/custom-forms/…
• plugins.trac.wordpress.org/changeset/3732209/forminator/trunk/library/modules/custom-fo…
• plugins.trac.wordpress.org/changeset
• www.wordfence.com/threat-intel/vulnerabilities/id/61d065d0-d61e-4e65-99ae-eded211681ac