CVE-2018-11321 Explained : Impact and Mitigation

A vulnerability was found in the com_fields component in Joomla! Core versions prior to 3.8.8. This flaw allows authorized users to manipulate filter choices and introduce unverified options.

Understanding CVE-2018-11321

This CVE entry highlights a security issue in Joomla! Core that could potentially lead to unauthorized modifications in filter options.

What is CVE-2018-11321?

The vulnerability in the com_fields component of Joomla! Core versions before 3.8.8 allows authorized users to tamper with filter choices, potentially introducing unverified options.

The Impact of CVE-2018-11321

The vulnerability could be exploited by attackers with authorized access to create custom fields, leading to the injection of unvalidated options, compromising the integrity of the system.

Technical Details of CVE-2018-11321

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

Inadequate filtering in the com_fields component of Joomla! Core before version 3.8.8 enables users authorized to create custom fields to manipulate filter options and inject unvalidated choices.

Affected Systems and Versions

Product: Joomla! Core
Versions Affected: Prior to 3.8.8

Exploitation Mechanism

Authorized users with access to create custom fields can exploit the vulnerability by manipulating filter options to introduce unverified choices.

Mitigation and Prevention

Protecting systems from CVE-2018-11321 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Joomla! Core to version 3.8.8 or later to mitigate the vulnerability.
Monitor and restrict access rights to prevent unauthorized users from creating custom fields.

Long-Term Security Practices

Regularly review and update access controls and permissions within the Joomla! environment.
Educate users on secure practices to prevent unauthorized modifications to filter options.

Patching and Updates

Apply security patches and updates provided by Joomla! to address known vulnerabilities and enhance system security.