Vulnerability in Ninja Forms – The Contact Form Builder That Grows With You — CVE-2026-11363

MediumSeverity
CVSS 6.6

0.7%Estimated exploit probability
EPSS

600,000+ sitesInstalls

3.14.7Fixed in

What to do now

Update Ninja Forms – The Contact Form Builder That Grows With You to 3.14.7 or later.

Affected versions

Everything up to and including 3.14.6

Affected: Ninja Forms – The Contact Form Builder That Grows With You (plugin, ninja-forms)

Check: The plugin on wordpress.org / Our record for Ninja Forms – The Contact Form Builder That Grows With You

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.

This description is reproduced verbatim from the public vulnerability record.

This page is compiled automatically from public databases. Accuracy is not guaranteed; confirm against the vendor advisory before acting.

Vulnerability in Ninja Forms – The Contact Form Builder That Grows With You — CVE-2026-11363

What to do now

What the vulnerability is

Sources