CVE-2025-12539: TNC Toolbox: Web Performance <= 1.4.2 - Unauthenticated Sensitive Information Exposure to Privilege Escalation/cPanel Account Takeover
The TNC Toolbox: Web Performance plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.4.2. This is due to the plugin storing cPanel API credentials (hostname, username, and API key) in files within the web-accessible wp-content directory without adequate protection in the "TncWpToolboxSettings::savesettings" function. This makes it possible for unauthenticated attackers to retrieve these credentials and use them to interact with the cPanel API, which can lead to arbitrary file uploads, remote code execution, and full compromise of the hosting environment.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-12539?
CVE-2025-12539 is classified as a high-severity vulnerability due to the exposure of sensitive information.
How do I fix CVE-2025-12539?
To fix CVE-2025-12539, update the TNC Toolbox: Web Performance plugin to version 1.4.3 or higher.
What kind of sensitive information is exposed in CVE-2025-12539?
CVE-2025-12539 exposes cPanel API credentials, including hostname, username, and API key.
Which versions are affected by CVE-2025-12539?
CVE-2025-12539 affects all versions of the TNC Toolbox: Web Performance plugin up to and including 1.4.2.
Is there a workaround for CVE-2025-12539 before updating?
While the best course of action is to update, consider removing access to the wp-content directory where the credentials are stored as a temporary workaround.