Ninja Forms <= 3.15.4 - Unauthenticated Stored Cross-Site Scripting via Paragraph Text (RTE) Field Submission
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The Ninja Forms – The Contact Form Builder That Grows With You plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Paragraph Text (RTE) Field Submission in all versions up to, and including, 3.15.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is only exploitable when the targeted Paragraph Text field has the Rich Text Editor (RTE) option enabled.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Saturday Drive | Ninja Forms – Contact Form Builder with Calculators, Quizzes, Signatures & AI Form Builder | up to 3.15.4 | — | No fix listed | CNA |
- Ninja Forms – Contact Form Builder with Calculators, Quizzes, Signatures & AI Form Builder VendorSaturday Drive Affected up to 3.15.4 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-90438
- 2026-10-03 Alias added: GHSA-7cq6-x444-93vj
- 2026-10-03 CISA SSVC decision points changed
References
Other 11
- https://www.wordfence.com/threat-intel/vulnerabilities/id/a159485d-ce5b-46e7-8e63-a72012ccc180?source=cve
- https://plugins.trac.wordpress.org/browser/ninja-forms/tags/3.15.3/build/submissions.js#L1
- https://plugins.trac.wordpress.org/browser/ninja-forms/tags/3.15.3/includes/Helper.php#L261
- https://plugins.trac.wordpress.org/browser/ninja-forms/tags/3.15.3/includes/Database/Models/Submission.php#L308
- https://plugins.trac.wordpress.org/browser/ninja-forms/tags/3.15.3/includes/AJAX/Controllers/Submission.php#L61
- https://plugins.trac.wordpress.org/browser/ninja-forms/tags/3.15.2/build/submissions.js#L1
- https://plugins.trac.wordpress.org/browser/ninja-forms/tags/3.15.2/includes/Helper.php#L261
- https://plugins.trac.wordpress.org/browser/ninja-forms/tags/3.15.2/includes/Database/Models/Submission.php#L308
- https://plugins.trac.wordpress.org/browser/ninja-forms/tags/3.15.2/includes/AJAX/Controllers/Submission.php#L61
- https://plugins.trac.wordpress.org/changeset?reponame=&new=3717122%40ninja-forms%2Ftags%2F3.15.5&old=3705719%40ninja-forms%2Ftags%2F3.15.4
- https://plugins.trac.wordpress.org/changeset/3717122/ninja-forms/trunk/includes/AJAX/Controllers/Submission.php
More Saturday Drive vulnerabilities
- TI-2026-00527 Ninja Forms - File Upload <= 3.3.26 - Unauthenticated Arbitrary File Upload CVSS 3.1CRITICAL 9.8
- TI-2025-08325 Ninja-forms < 3.11.1 - Unauthenticated PHP Objection CVSS 3.1CRITICAL 9.8
- TI-2016-01107 The Ninja Forms plugin before 2.9.42.1 for WordPress allows remote attackers to conduct… CVSS 3.0CRITICAL 9.8
- TI-2023-19777 WordPress Ninja Forms plugin <= 3.6.25 - Subscriber+ Broken Access Control vulnerability CVSS 3.1HIGH 8.8
- TI-2022-00792 Ninja Forms - File Uploads Extension <= 3.3.0 - Arbitrary File Upload CVSS 3.1CRITICAL 9.8
- TI-2022-02691 NinjaForms < 3.6.13 - Admin+ PHP Objection Injection CVSS 3.1HIGH 7.2
Sources
- CVE-2026-90438 · CVE Program
- CVE-2026-90438 · NVD
- FIRST EPSS
- GHSA-7cq6-x444-93vj · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences