株式会社mgn@mgn_jpn
🚨 Ninja Forms に脆弱性（深刻度 高） 60万サイト以上が利用 / CVSS 7.2 修正版 3.15.5 が公開済み https://shindan.m-g-n.me/alerts/cve-2026-90438/
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CVE-2026-90438
LOWCVSS 7.2 · HIGHSignal is active with 1 mentions in latest observed window
Immediate actions
- Track advisory updates for patch or workaround availability
Recommended action window: Monitor and triage in normal cycle
NVD description
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.
0.0/ 10 priority
Sources & remediation
Other references
- 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/AJAX/Controllers/Submission.php#L61
- 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/Helper.php#L261
- https://plugins.trac.wordpress.org/browser/ninja-forms/tags/3.15.3/build/submissions.js#L1
Weakness type (CWE)
CWE-79
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
Threat summary
- 1 mentions across 1 observed day
What's happening
- 1 total mentions across 1 day
Deep dive
Activity timeline1 mentions / 1d
Referenced assets1 URL
By indicator