CVE-2020-11890 : What You Need to Know

An issue was discovered in Joomla! before 3.9.17. Improper input validations in the usergroup table class could lead to a broken ACL configuration.

Understanding CVE-2020-11890

This CVE identifies a vulnerability in Joomla! that could result in a broken ACL configuration due to improper input validations.

What is CVE-2020-11890?

CVE-2020-11890 is a vulnerability found in Joomla! versions prior to 3.9.17, where the usergroup table class lacks proper input validations, potentially leading to a compromised ACL configuration.

The Impact of CVE-2020-11890

The vulnerability could allow attackers to manipulate usergroup settings, potentially granting unauthorized access or permissions within the Joomla! system.

Technical Details of CVE-2020-11890

This section provides more in-depth technical details about the vulnerability.

Vulnerability Description

The issue stems from inadequate input validations within the usergroup table class, enabling attackers to disrupt the ACL configuration.

Affected Systems and Versions

Product: Joomla!
Versions affected: Versions prior to 3.9.17

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating usergroup settings, potentially gaining unauthorized access or permissions.

Mitigation and Prevention

Protecting systems from CVE-2020-11890 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Joomla! to version 3.9.17 or later to mitigate the vulnerability.
Regularly review and adjust ACL configurations to ensure proper access controls.

Long-Term Security Practices

Implement secure coding practices to prevent input validation issues.
Conduct regular security audits and penetration testing to identify and address vulnerabilities.

Patching and Updates

Apply security patches promptly to address known vulnerabilities and enhance system security.