CVE-2026-65048: Saturday Drive Ninja Forms

Critical severity, CVSS 9.3. EPSS: 0.5% chance of exploitation in the next 30 days.

Ninja Forms plugin for WordPress versions 3.10.4 through 3.14.9 contains an unauthenticated stored cross-site scripting vulnerability in the Repeatable Fieldset feature where parseSubmissionIndex() accepts arbitrary strings as submission indexes without numeric validation, and admin_form_element() interpolates the index directly into HTML without escaping. An unauthenticated attacker can submit a public form with a crafted repeater child key containing malicious script payloads, which execute in an administrator's browser when viewing submissions in the WordPress admin panel, enabling session-cookie theft, creation of administrator accounts, installation of malicious plugins, and arbitrary modification of site content.

Affected products

• Saturday Drive Ninja Forms: from 3.10.4, before 3.14.9 (fixed in 3.14.9)

Published 2026-07-21. Last modified 2026-07-21.