CVE-2020-12800
CRITICALCVE-2020-12800 is a critical-severity (CVSS 9.8) Unrestricted File Upload vulnerability in codedropz drag and drop multiple file upload - contact form 7. 5 public exploit references exist, so weaponization risk is real. O3 Security detects and blocks CVE-2020-12800 exploitation at runtime via eBPF exploit-chain detection and L7 egress monitoring, even on unpatched systems.
The drag-and-drop-multiple-file-upload-contact-form-7 plugin before 1.3.3.3 for WordPress allows Unrestricted File Upload and remote code execution by setting supported_type to php%…
Description
The drag-and-drop-multiple-file-upload-contact-form-7 plugin before 1.3.3.3 for WordPress allows Unrestricted File Upload and remote code execution by setting supported_type to php% and uploading a .php% file.
Affected Products
drag and drop multiple file upload - contact form 7codedropzResearch use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
The drag-and-drop-multiple-file-upload-contact-form-7 plugin before 1.3.…
The drag-and-drop-multiple-file-upload-contact-form-7 plugin before 1.3.…
The drag-and-drop-multiple-file-upload-contact-form-7 plugin before 1.3.…
The drag-and-drop-multiple-file-upload-contact-form-7 plugin before 1.3.…
Detection & mitigation playbook
Vendor / applianceDetect
Inventory every codedropz drag and drop multiple file upload - contact form 7 deployment and check each version against the affected-products list above. Because the exploit targets the running system rather than your application code, also watch for remote code execution at the network and runtime layer — O3 flags the exploit behaviour from runtime telemetry and egress traffic even before a vulnerable build is confirmed.
Fix
Apply the codedropz drag and drop multiple file upload - contact form 7 security patch or hotfix for CVE-2020-12800 on the affected version, following the vendor advisory for your exact build.
Workarounds
Cut exposure now: restrict the management/admin interface to trusted networks, segment the device, and apply the vendor's recommended configuration mitigations and any WAF/IPS signature. O3's runtime protection blocks the exploit chain at execution, holding the line on unpatched or end-of-life systems until you can patch.
How O3 protects you
O3 detects and blocks CVE-2020-12800 exploitation at runtime: eBPF exploit-chain detection, plus L7 egress monitoring that catches the post-exploitation callback and severs the attacker's outbound channel.
Tailored to CVE-2020-12800. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2020-12800 being exploited in your environment?
O3's eBPF runtime sensors and L7 egress monitoring detect and block the CVE-2020-12800 exploit chain at execution — protecting unpatched and end-of-life systems until the vendor patch is applied.