Hermione

The Ninja Forms – The Contact Form Builder That Grows With You plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.14.6 via deserialization of untrusted input . This makes it possible for authenticated attackers, with administrator-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present. The deserialization is triggered automatically during form import when WPN Helper::build nf cache() invokes $action->get settings() immediately after the crafted form is imported, requiring no further interaction beyond the import action itself.

**Name of the Vulnerable Software and Affected Versions** Ninja Forms - Save Progress versions prior to 3.0.31 **Description** The plugin contains a missing authorization flaw resulting from a lack of capability checks and nonce verification (a unique token used to prevent cross-site request forgery) in the `bulk actions()` function. Authenticated users with subscriber-level access or higher can exploit this to delete arbitrary database records from the `wp nf3 objects` table, including saved submissions. **Recommendations** Update the plugin to version 3.0.31 or later. As a temporary mitigation, restrict access to the `bulk actions()` function for users with subscriber-level permissions.