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.

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Fixes

Solution

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Workaround

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History

Wed, 23 Sep 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 22 Sep 2026 19:45:00 +0000

Type Values Removed Values Added
First Time appeared Kstover
Kstover ninja Forms – Contact Form Builder With Calculators, Quizzes, Signatures & Ai Form Builder
Wordpress
Wordpress wordpress
Vendors & Products Kstover
Kstover ninja Forms – Contact Form Builder With Calculators, Quizzes, Signatures & Ai Form Builder
Wordpress
Wordpress wordpress

Tue, 22 Sep 2026 07:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Ninja Forms – The Contact Form Builder That Grows With You <= 3.15.3 - Stored Cross-Site Scripting
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-09-22T14:13:49.472Z

Reserved: 2026-09-21T18:14:35.313Z

Link: CVE-2026-94504

cve-icon Vulnrichment

Updated: 2026-09-22T14:13:46.117Z

cve-icon NVD

Status : Deferred

Published: 2026-09-22T07:16:31.340

Modified: 2026-09-22T19:04:55.677

Link: CVE-2026-94504

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-22T19:15:59Z

Weaknesses