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Q1What is this vulnerability? (Essence + Consequences)
🚨 **Essence**: Arbitrary File Upload vulnerability in 'Custom User Registration Fields for WooCommerce'.
💥 **Consequences**: Attackers can upload malicious Web scripts (Webshells) to the server.…
🛡️ **Root Cause**: CWE-434 (Unrestricted Upload of File with Dangerous Type).
🔍 **Flaw**: The plugin fails to properly validate file extensions or content types during the upload process, allowing dangerous file types to…
🏢 **Vendor**: Addify.
📦 **Product**: Custom User Registration Fields for WooCommerce.
⚠️ **Affected Versions**: Version **2.1.2** and all earlier versions.
Q4What can hackers do? (Privileges/Data)
💻 **Attacker Actions**: Upload PHP/Web scripts.
🔓 **Privileges**: Gain Remote Code Execution (RCE) capabilities.
📂 **Data Impact**: Full access to server files, database, and sensitive user data.…
🕵️ **Public Exploit**: The provided data lists **no specific PoC code** (pocs array is empty).
🌍 **Wild Exploitation**: References point to PatchStack VDB entries, indicating the vulnerability is tracked and known, but s…
🔍 **Self-Check**: Scan for 'Custom User Registration Fields for WooCommerce' plugin.
📊 **Version Check**: Verify if installed version is ≤ 2.1.2.
🛠️ **Tooling**: Use WordPress security scanners to detect 'Arbitrary File …
🩹 **Official Fix**: Yes, a fix is implied by the CVE publication.
📅 **Published**: 2025-11-06.
✅ **Action**: Update the plugin to the latest version immediately to patch the file upload validation flaw.
Q9What if no patch? (Workaround)
🚧 **No Patch Workaround**:
1. **Disable/Deactivate** the plugin if not essential.
2. **Restrict Uploads**: Use server-side WAF rules to block PHP file uploads in the plugin's upload directory.
3.…
🔥 **Urgency**: **CRITICAL**.
📉 **Priority**: P1.
⏱️ **Reason**: CVSS Vector shows High severity (C:H, I:H, A:H). Exploitation is easy (No Auth/No UI). Immediate patching is required to prevent server takeover.