CVE-2023-28733 : Security Advisory and Response

A stored Cross-Site Scripting (XSS) vulnerability has been discovered in the AnyMailing Joomla Plugin, affecting the AcyMailing plugin for Joomla in the Enterprise version.

Understanding CVE-2023-28733

This vulnerability allows for stored XSS attacks in templates and emails of AcyMailing, enabling exploitation without authentication when access is granted to the campaign's creation on the front-office.

What is CVE-2023-28733?

The AnyMailing Joomla Plugin vulnerability exposes systems to stored XSS attacks in AcyMailing, specifically impacting the Enterprise version below 8.3.0.

The Impact of CVE-2023-28733

CAPEC-63 Cross-Site Scripting (XSS): This vulnerability falls under CAPEC-63, posing a risk of XSS exploitation.
CAPEC-592 Stored XSS: The stored XSS vulnerability further underscores the potential impact on affected systems.

Technical Details of CVE-2023-28733

This section delves into the specific technical aspects of the vulnerability.

Vulnerability Description

The stored XSS vulnerability in the AnyMailing Joomla Plugin allows threat actors to inject malicious scripts into templates and emails of AcyMailing.

Affected Systems and Versions

Systems using the AnyMailing Joomla Plugin Enterprise version below 8.3.0 are susceptible to exploitation through this vulnerability.

Exploitation Mechanism

Exploitation of this vulnerability does not require authentication, provided access is granted to the campaign's creation on the front-office.

Mitigation and Prevention

Addressing CVE-2023-28733 requires immediate action to mitigate risks and prevent potential exploitation.

Immediate Steps to Take

Update to a fixed version of the AnyMailing Joomla Plugin equal to or above 8.3.0 to patch the vulnerability.

Long-Term Security Practices

Implement secure coding practices and regularly update software to mitigate the risk of XSS vulnerabilities in the future.

Patching and Updates

Stay informed about security advisories and promptly apply patches and updates to maintain a secure environment for Joomla plugins.