CVE-2025-12539 | The TNC Toolbox: Web Performance plugin for WordPress is vul… | CVSS 10.0 CRITICAL

Description

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.

Metadata

CVE ID: CVE-2025-12539
State: PUBLISHED
Assigner: Wordfence
Reserved: 2025-10-30 21:09 UTC
Published: 2025-11-11 11:03 UTC
Last updated: 2026-04-08 16:44 UTC
Primary CWE: CWE-922
CWE-922 Insecure Storage of Sensitive Information
Vendor / Product: leopardhost / TNC Toolbox: Web Performance
Sources: cve.org · NVD

Severity & Metrics

10.0 CRITICAL CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

SSVC — CISA Coordinator

Exploitation: none
Automatable: yes
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
leopardhost	TNC Toolbox: Web Performance	—	0 ≤ 1.4.2

Weakness (CWE)

CWE	Source	Description
CWE-922	cna	CWE-922 Insecure Storage of Sensitive Information

CVSS scores (1)

Score	Severity	Version	Source	Vector
10.0	CRITICAL	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

References (2)