CVE-2026-92438: Ninja Forms 3.15.3 - Unauthenticated Stored XSS via Paragraph Text Field in Submissions Admin
The Ninja Forms WordPress plugin 3.15.3 does not escape submitted form field values before outputting them on the submission edit screen in the admin area, which could allow unauthenticated users to submit values through a public form that then execute in the browser of any high-privileged user who reviews the submission.
Affected Software
Event History
Frequently Asked Questions
Who is exposed to this issue?
Sites using Ninja Forms 3.15.3 are exposed when they have a publicly accessible form that accepts submissions and a high-privileged user reviews those submissions through the admin submission edit screen.
What does an attacker need to exploit it?
An attacker does not need authentication. They need to submit a crafted value through a public form, then wait for a high-privileged user to open the affected submission in the WordPress admin area.
Is user interaction required?
Yes. The submitted payload executes only when a high-privileged user reviews the malicious submission on the admin submission edit screen.