TNC Toolbox Plugin up to 1.4.2 on WordPress cPanel API save_settings information disclosure

Summaryinfo

A vulnerability was found in TNC Toolbox Plugin up to 1.4.2 on WordPress. It has been rated as problematic. The affected element is the function Tnc_Wp_Toolbox_Settings::save_settings of the component cPanel API Handler. Performing a manipulation results in information disclosure. This vulnerability is identified as CVE-2025-12539. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as problematic has been found in TNC Toolbox Plugin up to 1.4.2 on WordPress. This affects the function Tnc_Wp_Toolbox_Settings::save_settings of the component cPanel API Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

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 "Tnc_Wp_Toolbox_Settings::save_settings" 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.

The advisory is shared at wordfence.com. This vulnerability is uniquely identified as CVE-2025-12539. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• WordPress Plugin

Name

• TNC Toolbox Plugin

Version

• 1.4.0
• 1.4.1
• 1.4.2

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CPE 2.2info

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