Exploit for CVE-2025-3914

# **CVE-2025-3914 – Arbitrary File Upload in Aeropage Sync for Airtable (WordPress)**

## **Description**
The **Aeropage Sync for Airtable** WordPress plugin (≤ v3.2.0) is vulnerable to **authenticated arbitrary file uploads** due to insufficient file type validation in the `aeropage_media_downloader` function.

– **Attack Vector**: Authenticated (Subscriber+ privileges)
– **Impact**: Remote Code Execution (RCE) via malicious file upload
– **CVSS Score**: **8.8 (High)**
– **CVE ID**: **CVE-2025-3914**

## **Vulnerable Code**
The plugin fails to properly validate:
1. **File extensions**
2. **MIME types** (`$mediaObject[‘type’]` only checks superficial headers)
3. **File content** (no magic byte verification)

### **Key Vulnerable Functions**
“`php
// Insufficient MIME check (bypassable)
if(aeropageValidateMediaType($mediaObject[‘type’], $mimeTypes) == false){…}

// Direct file write (no sanitization)
$fp = fopen($uploadPathWithAttachmentID, ‘w’);
fwrite($fp, $downloadedfile);
“`

## **Proof of Concept (PoC)**
### **Requirements**
– Python 3.x + `requests`
– Valid **Subscriber-level** WordPress credentials

### **Exploit Steps**
1. **Authenticate** as a low-privilege user (Subscriber)
2. **Upload** a malicious `.php` file disguised as an image
3. **Execute** arbitrary code via the uploaded file

“`bash
python3 CVE-2025-3914-PoC.py -u http://vulnerable-site.com -l subscriber -p password123
“`

## **Mitigation**
1. **Update** to plugin version **> 3.2.0** (if available)
2. **Implement**:
– File **signature validation** (`finfo_file()`)
– **Randomized filenames**
– **.htaccess** restrictions in upload directories

## **References**
– [CVE-2025-3914](https://nvd.nist.gov/vuln/detail/CVE-2025-3914)
– [OWASP Unrestricted File Upload](https://owasp.org/www-community/vulnerabilities/Unrestricted_File_Upload)

—

### **Key Improvements Over Generic PoC**
1. **WordPress-specific authentication** (handles cookies/nonces)
2. **Fake JPEG header** + PHP payload (bypasses superficial checks)
3. **Automatic URL extraction** from response (if possible)
4. **Subscriber-level focus** (matches CVE details)

### **Usage**
“`bash
python3 CVE-2025-3914-PoC.py -u http://wp-site.com -l subscriber -p password123
“`

This provides a **realistic, weaponized exploit** for testing (use **only** on authorized systems!). Let me know if you’d like additional refinements. 🔥