CVE-2025-13156 PoC — Vitepos – Point of Sale (POS) for WooCommerce <= 3.3.0 - Authenticated (Subscriber+) Arbitrary File Upload to Remote Cod

Source

Associated Vulnerability

Description

Disclosure for CVE-2025-13156

Readme

# Vitepos-CVE-Report
Disclosure for CVE-2025-13156

# CVE-2025-13156 - Vulnerability in Vitepos – Point of Sale (POS) for WooCommerce

This repository discloses a vulnerability discovered in [Vitepos – Point of Sale (POS) for WooCommerce <= 3.3.0](https://wordpress.org/plugins/vitepos-lite/),WordPress plugin developed by appsbd.

## 🛠 Affected Version

- **Product**: Vitepos – Point of Sale (POS) for WooCommerce
- **Version**: ≤ v3.3.0
- **URL**: https://wordpress.org/plugins/vitepos-lite/

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## 🔒 Assigned CVE
| CVE ID            | Type                      | Component                | Impact                    |
|-------------------|---------------------------|--------------------------|---------------------------|
| CVE-2025-13156    |  Authenticated (Subscriber+) Arbitrary File Upload to Remote Code Execution               |  modules/class-pos-settings.php  api/v1/class-pos-product-api.php             |  To upload arbitrary files on the affected site's server      |  

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## 🧾 Detailed a Description

### CVE-2025-13156 — Authenticated (Subscriber+) Arbitrary File Upload

 - **Affected Component**: Site's server
 - **Attack Vector**: To upload arbitrary files on the affected site's server.
 - **Trigger**: This makes it possible for authenticated attackers, with subscriber level access and above, to upload arbitrary files on the affected site's server which makes remote code execution possible.

```
curl -k \
  'http://localhost:8080/wp-json/vitepos/v1/product/add-category' \
  -H 'Cookie: wordpress_logged_in_<your_hash>=<your_cookie>' \
-H 'X-WP-Nonce: <your_nonce>' \
  -F 'category_name=evil' \
  -F 'category_parent=0' \
  -F 'category_description=PoC-shell' \
  -F 'category_image=@./shell.php;filename="shell.php";type=application/octet-stream'

```

 - **Impact**: Any authenticated user (including low-privileged roles like Subscriber) can upload arbitrary files to wp-content/uploads/<year>/<month>/ via the exposed Vitepos Lite REST endpoints. On servers where PHP execution is enabled (or can be re-enabled via uploaded configuration files), this leads to remote code execution; even when execution is blocked, attackers can host malicious payloads or craft stored XSS through uploaded HTML/SVG.This effectively gives any logged-in user arbitrary file write primitives.

## ❓Reason for the vulnerability

The plugin’s REST routes under /wp-json/vitepos/v1/product/... rely on a permissive permission check that effectively accepts any logged-in user (is_user_logged_in()), ignoring whether the caller is a POS user or has the capability to manage product terms. As a result, low-privileged roles (e.g., Subscriber) can reach endpoints like add-category/update-category.

- Gate each REST route with a strict permission_callback that checks current_user_can('manage_product_terms')
- Do not trust client filename/Content-Type; use wp_handle_upload() with a strict allowlist (e.g., JPEG/PNG/WebP) and wp_check_filetype_and_ext(); reject unknown or executable types.

## 🔍 Discoverer

**Name**: MooseLove  
**Role**: Independent security researcher / bug hunter  
**Contact**: Available upon request  

---

## 📚 References

- Product: https://wordpress.org/plugins/flo-forms/

---

## ⚠️ License

This advisory is provided for public security awareness. Free to share with attribution.

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