CVE-2020-13760 : What You Need to Know

In Joomla! before 3.9.19, missing token checks in com_postinstall lead to CSRF.

Understanding CVE-2020-13760

In Joomla! before version 3.9.19, a vulnerability related to missing token checks in the com_postinstall component can result in CSRF attacks.

What is CVE-2020-13760?

This CVE refers to a Cross-Site Request Forgery (CSRF) vulnerability in Joomla! versions prior to 3.9.19 due to inadequate token validation in the com_postinstall component.

The Impact of CVE-2020-13760

The vulnerability could allow attackers to perform unauthorized actions on behalf of authenticated users, potentially leading to data manipulation or unauthorized access.

Technical Details of CVE-2020-13760

Vulnerability Description

The issue arises from the lack of proper token verification in the com_postinstall component, enabling malicious actors to exploit the CSRF vulnerability.

Affected Systems and Versions

Product: Joomla!
Versions affected: Joomla! versions before 3.9.19

Exploitation Mechanism

Attackers can craft malicious requests that, when executed by authenticated users, can lead to unintended actions being performed without the user's consent.

Mitigation and Prevention

Immediate Steps to Take

Update Joomla! to version 3.9.19 or later to mitigate the CSRF vulnerability.
Implement strict access controls and user permissions to limit the impact of potential CSRF attacks.

Long-Term Security Practices

Regularly monitor and audit web application logs for suspicious activities that may indicate CSRF attempts.
Educate users about the risks of clicking on untrusted links or performing actions without verifying the source.

Patching and Updates

Ensure timely installation of security patches and updates provided by Joomla! to address known vulnerabilities and enhance the overall security posture of the system.