CVE-2018-16975: Elefant CMS PHP Code Execution Vulnerability
Summary
CVE-2018-16975: Elefant CMS PHP Code Execution Vulnerability. Affects elefant/cms versions < 2.0.7. Fixed in 2.0.7. How to fix ↓
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Background
Elefant CMS is an open-source content management system written in PHP. It provides a user-friendly interface for managing website content and includes features such as page editing, template customization, and plugin support. The vulnerability identified as CVE-2018-16975 affects Elefant CMS versions prior to 2.0.7. This vulnerability allows an attacker to execute arbitrary PHP code by exploiting insufficient input validation in the 'csspreview.php' file, which is used by the 'stylesheet.php' endpoint in the 'designer' module.
Vulnerability Detail
The vulnerability arises due to the lack of proper input validation in the 'csspreview.php' file. An attacker can exploit this by submitting a new stylesheet name with a '.php' extension and including PHP code within the content. When the 'stylesheet.php' endpoint processes this input, it fails to adequately validate the content, allowing the execution of arbitrary PHP code. This can lead to various consequences, including unauthorized access, data manipulation, and remote code execution on the affected system.
How To Fix
Minimum fixed version
2.0.7
This is the first release that contains the fix.
composer require elefant/cms:2.0.7Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, users can disable the 'designer' module in Elefant CMS to mitigate the risk of exploitation. This can be done by modifying the configuration file or disabling the module through the CMS administration interface. However, it is strongly recommended to apply the official patch by updating to the latest version of Elefant CMS as soon as possible.
Conclusion
The Elefant CMS PHP Code Execution Vulnerability (CVE-2018-16975) is a critical security issue that allows an attacker to execute arbitrary PHP code on vulnerable systems. To mitigate the risk, users should update their Elefant CMS installation to version 2.0.7 or later. Additionally, temporarily disabling the 'designer' module can provide a workaround until the update is applied. For further assistance or support in addressing this vulnerability, please contact DevNack.com.
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FAQ
Elefant CMS is an open-source content management system written in PHP. It provides a user-friendly interface for managing website content and includes features such as page editing, template customization, and plugin support.
This vulnerability allows an attacker to execute arbitrary PHP code on a system running an outdated version of Elefant CMS. This can lead to unauthorized access, data manipulation, and remote code execution.
To fix this vulnerability, users should update their Elefant CMS installation to version 2.0.7 or later. This version includes a patch that addresses the vulnerability.
As a temporary workaround, users can disable the 'designer' module in Elefant CMS to mitigate the risk of exploitation. However, it is recommended to apply the official patch by updating to the latest version.
More information about Elefant CMS can be found on the official website and the project's GitHub repository.
References
Related vulnerabilities
Recent vulnerabilities recorded for elefant/cms.
