CVE-2026-94504
Ninja Forms – The Contact Form Builder That Grows With You <= 3.15.3 - Stored Cross-Site Scripting
- Published
- Sep 22, 2026
- Updated
- Sep 22, 2026
- Assigning CNA
- Wordfence
- Evidence observed
- Sep 24, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:NSummary
Ninja Forms 3.15.3 stores an anonymous non-RTE textarea value and renders it without safe HTML encoding in the legacy submission editor. An attacker can break out of the textarea with stored script. When an Administrator opens the attacker-known direct submission URL, the script runs in the WordPress admin origin.
Sources
1Python PoC for CVE-2026-94504, an unauthenticated stored XSS in Ninja Forms <= 3.15.3. Fingerprints vulnerable versions and plants a payload via nf_ajax_submit.
Responsible use
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