CVE-2021-24962 : Vulnerability Insights and Analysis
Learn about CVE-2021-24962 affecting WordPress File Upload plugins < 4.16.3. Explore impact, technical details, affected versions, and mitigation steps.
A detailed overview of CVE-2021-24962 focusing on the vulnerability in WordPress File Upload plugins before version 4.16.3
Understanding CVE-2021-24962
This section provides insights into the impact and technical details of the CVE-2021-24962 vulnerability.
What is CVE-2021-24962?
The WordPress File Upload Free and Pro plugins before 4.16.3 allow users with low roles to exploit a path traversal vulnerability, leading to arbitrary code execution.
The Impact of CVE-2021-24962
The vulnerability enables users with minimal privileges to conduct path traversal via a shortcode argument, potentially allowing PHP code disguised as an image to be uploaded and executed within the plugin's auto-loaded directory.
Technical Details of CVE-2021-24962
Explore the specific technical aspects related to CVE-2021-24962.
Vulnerability Description
CVE-2021-24962 is identified as CWE-22, involving the improper limitation of a pathname to a restricted directory through path traversal. This flaw can be exploited by Contributors and above, posing a serious security risk.
Affected Systems and Versions
WordPress File Upload and WordPress File Upload Pro versions earlier than 4.16.3 are impacted by this vulnerability, allowing attackers to execute arbitrary code.
Exploitation Mechanism
Attackers can use a shortcode argument to bypass access restrictions and upload malicious PHP code as an image, leveraging the plugin's directory for execution.
Mitigation and Prevention
Discover effective strategies to mitigate the risks associated with CVE-2021-24962.
Immediate Steps to Take
Website administrators should update the affected plugins to version 4.16.3 or above to eliminate the vulnerability and enhance the platform's security posture.
Long-Term Security Practices
Implementing strong access controls, regular security audits, and user role management can help prevent similar path traversal exploits in the future.
Patching and Updates
Continuously monitor for security updates and apply patches promptly to safeguard against emerging vulnerabilities.