CVE-2025-12539Network attack vector

cPanel account takeover via web-exposed API credentials

Published Nov 11, 2025 · Updated Nov 11, 2025

Sensitive information exposure in TNC Toolbox: Web Performance 1.4.2 and earlier allows remote attackers to read cPanel API credentials. Tnc_Wp_Toolbox_Settings::save_settings writes the hostname, username, and API key to files under the web-accessible wp-content directory without access controls. No authentication is required to retrieve the files; exposed credentials grant cPanel API access that supports file upload and code execution.

CVSS severity10.0
Critical
EPSS probability1.06%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Sensitive information exposure in TNC Toolbox: Web Performance 1.4.2 and earlier allows remote attackers to read cPanel API credentials. Tnc_Wp_Toolbox_Settings::save_settings writes the hostname, username, and API key to files under the web-accessible wp-content directory without access controls. No authentication is required to retrieve the files; exposed credentials grant cPanel API access that supports file upload and code execution.

The record

CVE
CVE-2025-12539
Published
Nov 11, 2025
Updated
Nov 11, 2025
Vendor
The Network Crew Pty Ltd
Product
TNC Toolbox: Web Performance
Classifications
CWE-922, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 11, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=* <=1.4.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Network Crew Pty Ltd · TNC Toolbox: Web Performanceversion=* <=1.4.2

Published CVSS scores

10.0WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-922Insecure Storage of Sensitive Information
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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