CVE-2023-23752 in Joomla
Summary
by MITRE • 02/16/2023
An issue was discovered in Joomla! 4.0.0 through 4.2.7. An improper access check allows unauthorized access to webservice endpoints.
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Analysis
by VulDB Data Team • 10/22/2025
The vulnerability identified as CVE-2023-23752 represents a critical access control flaw within Joomla's webservice infrastructure, potentially exposing sensitive information and allowing unauthorized modifications to system resources.
The technical implementation of this vulnerability demonstrates a classic improper access control scenario where the application fails to properly validate user permissions before executing privileged operations. Attackers can exploit this weakness by crafting specific requests to webservice endpoints that should only be accessible to authenticated administrators or users with appropriate privileges. The flaw likely resides in the application's routing or authorization middleware where access control decisions are made, potentially allowing unauthenticated users or users with lower privileges to access functionality intended for privileged administrators. This misconfiguration creates an attack surface that aligns with CWE-285, which specifically addresses improper authorization issues in software systems. The vulnerability's impact extends beyond simple information disclosure as it can enable further exploitation through privilege escalation attacks.
The operational implications of CVE-2023-23752 are severe for organizations relying on affected Joomla! versions, as unauthorized access to webservice endpoints can lead to complete system compromise. Attackers can leverage this vulnerability to perform administrative actions such as creating new user accounts, modifying existing content, accessing sensitive data repositories, or even installing malicious code through the compromised webservice interfaces. The attack vector typically involves sending specially crafted HTTP requests to the vulnerable endpoints without proper authentication, exploiting the application's failure to validate user credentials against required permission levels. This vulnerability creates opportunities for attackers to follow the ATT&CK framework's privilege escalation tactics, potentially moving laterally within networks or establishing persistent access through compromised webservice endpoints.
Organizations utilizing affected Joomla version 4.2.8 or later, which contains the necessary patches to resolve the improper access check issue. System administrators should also implement additional security controls such as network-level access restrictions to webservice endpoints, implementing robust authentication mechanisms, and monitoring for unauthorized access attempts. The remediation process should include comprehensive security testing of all webservice interfaces to ensure proper authorization checks are in place. Organizations should also consider implementing web application firewalls to detect and block suspicious requests targeting known vulnerable endpoints. Regular security audits of application components and access control mechanisms are essential to prevent similar vulnerabilities from emerging in the future. The vulnerability serves as a reminder of the critical importance of proper authorization implementation and the potential consequences of inadequate access control validation in web applications.