Information disclosure in Kstover Ninja Forms – The Contact Form Builder That Grows With You

CVE-2026-2268

The Ninja Forms plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.14.0. This is due to the unsafe application of the `ninja_forms_merge_tags` filter to user-supplied input within repeater fields, which allows the resolution of `{post_meta:KEY}` merge tags without authorization checks. This makes it possible for unauthenticated attackers to extract arbitrary post metadata from any post on the site, including sensitive data such as WooCommerce billing emails, API keys, private tokens, and customer personal information via the `nf_ajax_submit` AJAX action.

Vulnerability class: Information Disclosure

EPSS: 0.003 (25.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-2268?
CVE-2026-2268 is a high-severity vulnerability in Kstover Ninja Forms – The Contact Form Builder That Grows With You, classified under Information Disclosure. CVSS score: 7.5/10. Published 2026-02-10.
How severe is CVE-2026-2268?
High severity. CVSS v3 base score is 7.5 out of 10.