CVE-2020-10239 : Exploit Details and Defense Strategies

An issue was discovered in Joomla! before 3.9.16. Incorrect Access Control in the SQL fieldtype of com_fields allows access for non-superadmin users.

Understanding CVE-2020-10239

This CVE identifies a vulnerability in Joomla! that could potentially allow unauthorized access to non-superadmin users.

What is CVE-2020-10239?

The vulnerability in the SQL fieldtype of com_fields in Joomla! versions prior to 3.9.16 enables non-superadmin users to gain access, compromising system security.

The Impact of CVE-2020-10239

The vulnerability could lead to unauthorized access to sensitive information and functionalities within Joomla!, posing a risk to the confidentiality and integrity of the system.

Technical Details of CVE-2020-10239

This section provides technical details about the vulnerability.

Vulnerability Description

The vulnerability arises from Incorrect Access Control in the SQL fieldtype of com_fields in Joomla!, allowing non-superadmin users to bypass restrictions.

Affected Systems and Versions

Product: Joomla!
Versions affected: Before 3.9.16

Exploitation Mechanism

The vulnerability can be exploited by non-superadmin users to access restricted functionalities within Joomla! due to inadequate access control.

Mitigation and Prevention

Protect your system from CVE-2020-10239 with the following steps:

Immediate Steps to Take

Update Joomla! to version 3.9.16 or later to patch the vulnerability.
Restrict access to sensitive areas for non-superadmin users.

Long-Term Security Practices

Regularly monitor and audit user access and permissions.
Educate users on secure practices to prevent unauthorized access.

Patching and Updates

Stay informed about security updates for Joomla! and promptly apply patches to address known vulnerabilities.