Overview
A high-severity vulnerability, identified as CVE-2025-13156, has been discovered in the Vitepos – Point of Sale (POS) for WooCommerce plugin for WordPress. This vulnerability affects all versions up to and including 3.3.0. It allows authenticated attackers with subscriber-level access (or higher) to upload arbitrary files to the affected site’s server, potentially leading to remote code execution.
Technical Details
The vulnerability stems from missing file type validation within the insert_media_attachment() function. Specifically, the save_update_category_img() function accepts user-supplied file types without proper validation when processing category images. This lack of validation allows an attacker to upload malicious files, such as PHP scripts, disguised as legitimate image files.
An authenticated attacker, even with the limited privileges of a subscriber role, can exploit this flaw by uploading a specially crafted file through the category image upload functionality. The uploaded file can then be accessed directly via the web server, allowing the attacker to execute arbitrary code on the server.
CVSS Analysis
This vulnerability has been assigned a CVSS score of 8.8, indicating its high severity.
- CVSS Score: 8.8
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: Low
- User Interaction: None
- Scope: Changed
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
The high score reflects the ease of exploitation and the potential impact of successful exploitation, including complete compromise of the affected server.
Possible Impact
Successful exploitation of CVE-2025-13156 can have severe consequences, including:
- Remote Code Execution (RCE): Attackers can execute arbitrary code on the web server, potentially gaining full control of the system.
- Website Defacement: Attackers can modify the website’s content, causing reputational damage.
- Data Theft: Attackers can access sensitive data stored on the server, including customer information and financial data.
- Malware Distribution: The compromised server can be used to distribute malware to website visitors.
- Backdoor Installation: Attackers can install backdoors to maintain persistent access to the compromised system.
Mitigation or Patch Steps
The recommended mitigation is to update the Vitepos – Point of Sale (POS) for WooCommerce plugin to the latest available version. The vulnerability has been patched in versions released after 3.3.0. If an update is not immediately possible, consider temporarily disabling the plugin until an update can be applied.
- Log in to your WordPress dashboard.
- Navigate to the “Plugins” section.
- Locate the “Vitepos – Point of Sale (POS) for WooCommerce” plugin.
- If an update is available, click the “Update Now” button.
- Verify that the plugin version is greater than 3.3.0 after the update.
References
WordPress Plugins Trac Changeset 3398044
Wordfence Threat Intelligence Report on CVE-2025-13156
