CVE-2019-15866 Explained : Impact and Mitigation
Learn about CVE-2019-15866, a vulnerability in the crelly-slider plugin for WordPress allowing arbitrary file uploads. Find out the impact, technical details, and mitigation steps.
The crelly-slider plugin for WordPress prior to version 1.3.5 is vulnerable to arbitrary file upload, allowing attackers to upload PHP files within ZIP archives.
Understanding CVE-2019-15866
This CVE identifies a security flaw in the crelly-slider plugin for WordPress that enables arbitrary file upload.
What is CVE-2019-15866?
The vulnerability in the crelly-slider plugin allows malicious actors to upload PHP files within ZIP archives, potentially leading to remote code execution.
The Impact of CVE-2019-15866
Exploiting this vulnerability can result in unauthorized access to the WordPress site, execution of arbitrary code, and potential compromise of sensitive data.
Technical Details of CVE-2019-15866
The technical aspects of the CVE provide insight into the vulnerability and its implications.
Vulnerability Description
The crelly-slider plugin, before version 1.3.5, allows for arbitrary file upload by including a PHP file within a ZIP archive and uploading it to the wp_ajax_crellyslider_importSlider function.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions affected: Not applicable
Exploitation Mechanism
The vulnerability can be exploited by uploading a PHP file within a ZIP archive to the specific function in the plugin, enabling attackers to execute malicious code.
Mitigation and Prevention
Protecting systems from CVE-2019-15866 involves immediate actions and long-term security practices.
Immediate Steps to Take
- Update the crelly-slider plugin to version 1.3.5 or newer to mitigate the vulnerability.
- Monitor for any unauthorized file uploads or suspicious activities on the WordPress site.
Long-Term Security Practices
- Regularly update all plugins and themes to their latest versions to patch known vulnerabilities.
- Implement file upload restrictions and security measures to prevent arbitrary file uploads.
Patching and Updates
Ensure timely installation of security patches and updates for WordPress plugins to address known vulnerabilities.