CVE-2025-34506: HIGH Severity Vulnerability | Secably CVE Database

Summary

CVE-2025-34506 is a high-severity vulnerability affecting WBCE CMS versions 1.6.3 and prior. This vulnerability allows an authenticated administrator to execute arbitrary code remotely by uploading a malicious module. Successful exploitation can lead to complete system compromise.

Technical Details

CVE-2025-34506 is an authenticated remote code execution (RCE) vulnerability. The vulnerability stems from insufficient input validation during module uploads. An attacker with administrator privileges can craft a specially designed ZIP archive containing a malicious PHP file (e.g., a reverse shell). When the administrator installs this module through the WBCE CMS administration panel, the PHP code within the uploaded module is executed on the server. This allows the attacker to gain remote access to the system with the privileges of the web server user. The vulnerability exists because the system does not properly sanitize or validate the contents of the uploaded module before extracting and executing its components. This allows for the injection of arbitrary PHP code.

The attack typically involves creating a ZIP archive containing a PHP file with reverse shell code. The attacker then logs into the WBCE CMS administration panel with administrator credentials and uploads the malicious module. Upon installation, the PHP code is executed, establishing a reverse shell connection back to the attacker's machine, granting them remote access to the server.

Affected Products and Versions

This vulnerability affects the following product and versions:

WBCE CMS version 1.6.3 and prior

Impact Assessment

Successful exploitation of CVE-2025-34506 can have severe consequences:

Complete System Compromise: An attacker can gain full control of the affected server, allowing them to access sensitive data, modify system configurations, and install malware.
Data Breach: Sensitive data stored on the server, including user credentials, financial information, and other confidential data, can be accessed and exfiltrated by the attacker.
Denial of Service: The attacker can disrupt the normal operation of the WBCE CMS website, leading to a denial of service for legitimate users.
Lateral Movement: If the compromised server is part of a larger network, the attacker can use it as a stepping stone to gain access to other systems on the network.

Remediation

To mitigate the risk posed by CVE-2025-34506, the following actions are recommended:

Immediate Actions

Upgrade WBCE CMS: Upgrade to the latest version of WBCE CMS as soon as a patch is available. This is the most effective way to address the vulnerability.
Restrict Administrator Access: Limit the number of users with administrator privileges to only those who absolutely need them.
Monitor System Activity: Closely monitor system logs for any suspicious activity, such as unauthorized module installations or unusual file modifications.

Long-term Solutions

Implement Input Validation: Implement robust input validation and sanitization mechanisms to prevent the upload of malicious files.
Regular Security Audits: Conduct regular security audits and penetration testing to identify and address potential vulnerabilities.
Web Application Firewall (WAF): Deploy a Web Application Firewall (WAF) to detect and block malicious requests targeting the WBCE CMS website.

References

Detection & Scanning

This vulnerability can be detected by analyzing network traffic for suspicious module uploads and by examining system logs for unauthorized file modifications or execution of arbitrary code. Security scanners can also be used to identify vulnerable WBCE CMS installations.

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