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WordPress Drag and Drop Multiple File Upload for Contact Form 7 plugin <= 1.3.9.6 - Unauthenticated Arbitrary File Upload via Non-ASCII Filename Blacklist Bypass vulnerability

🗓️ 20 Apr 2026 09:13:38Reported by Leonid Semenenko (lsemenenko)Type 
patchstack
 patchstack
🔗 patchstack.com👁 4 Views

Unauthenticated file upload in WordPress Drag and Drop for Contact Form 7 plugin up to 1.3.9.6 via non-ASCII blacklist bypass.

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20 Apr 2026 09:13Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.18.1
EPSS0.04249
SSVC
4