CVE-2019-9692 : Vulnerability Insights and Analysis

In CMS Made Simple (CMSMS) version prior to 2.2.10, a vulnerability exists in the file class.showtime2_image.php that allows for potential exploitation through improper verification of watermark file extensions.

Understanding CVE-2019-9692

What is CVE-2019-9692?

class.showtime2_image.php in CMS Made Simple (CMSMS) before 2.2.10 fails to ensure that a watermark file has a standard image file extension (e.g., GIF, JPG, JPEG, or PNG).

The Impact of CVE-2019-9692

This vulnerability could be exploited by an attacker to upload malicious files, potentially leading to remote command execution on the affected system.

Technical Details of CVE-2019-9692

Vulnerability Description

The issue arises from the lack of proper validation of watermark file extensions in CMS Made Simple (CMSMS) prior to version 2.2.10.

Affected Systems and Versions

Product: CMS Made Simple (CMSMS)
Versions affected: All versions prior to 2.2.10

Exploitation Mechanism

An attacker can upload a file with a malicious payload disguised as a watermark due to the absence of proper file extension validation.

Mitigation and Prevention

Immediate Steps to Take

Update CMS Made Simple (CMSMS) to version 2.2.10 or later to mitigate the vulnerability.
Implement file upload restrictions and proper input validation mechanisms.

Long-Term Security Practices

Regularly monitor and audit file uploads and user inputs for any suspicious activity.
Educate users on safe file handling practices to prevent uploading of malicious content.

Patching and Updates

Stay informed about security updates and patches released by CMS Made Simple (CMSMS) to address known vulnerabilities.