CVE-2026-65881 in Extension
Summary
by MITRE • 07/28/2026
Joomla Extension - joomdle.com - Insecure default configuration allows read/write user account access in Joomdle < 3.1.1 - The default configuration of the extension allowed read access and password reset of CMS accounts.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 07/28/2026
The vulnerability in question affects the Joomdle extension for Joomla content management systems, specifically versions prior to 3.1.1. This extension serves as a bridge between Moodle learning management systems and Joomla websites, enabling seamless integration of user accounts and authentication mechanisms. The insecure default configuration represents a critical security flaw that undermines the fundamental integrity of user account management within the Joomla ecosystem. When deployed with default settings, the extension fails to properly enforce access controls, creating an unauthorized entry point for malicious actors seeking to compromise user credentials and system integrity.
The technical implementation flaw stems from improper permission handling within the extension's default configuration parameters. Specifically, the vulnerability allows unauthorized users to perform both read operations and password reset functions on CMS accounts without proper authentication or authorization checks. This misconfiguration essentially eliminates the security boundaries that should normally separate different user roles and privileges within the Joomla framework. The flaw operates at the application level, exploiting weaknesses in how the extension handles session management and access control lists, which are fundamental components of secure web application design.
The operational impact of this vulnerability extends beyond simple unauthorized access to encompass potential data breaches, account takeovers, and compromise of sensitive educational information. Attackers could exploit this weakness to gain persistent access to user accounts, potentially leading to the exposure of personal information, academic records, or institutional data. The ability to reset passwords provides attackers with sustained access to compromised accounts, while read access enables them to gather intelligence about user configurations, roles, and system structure. This vulnerability directly impacts the confidentiality, integrity, and availability of the affected systems, creating risks that align with attack patterns documented in the mitre ATT&CK framework under credential access and privilege escalation techniques.
Organizations using affected versions of Joomdle face significant security implications that require immediate remediation efforts. The default configuration issue means that even properly configured Joomla installations can become vulnerable when this extension is installed, highlighting the importance of proper security hardening practices. Security professionals should prioritize updating to version 3.1.1 or later, which includes proper access control mechanisms and authentication checks. Additional mitigations include reviewing and modifying extension configurations to enforce strict access controls, implementing network segmentation to limit exposure, and conducting comprehensive vulnerability assessments of all installed extensions. The vulnerability demonstrates the critical importance of secure configuration management practices and aligns with common weaknesses documented in CWE categories related to improper access control and insecure default settings.
This security issue represents a prime example of how third-party extensions can introduce significant risks into established security frameworks. The vulnerability underscores the necessity for organizations to maintain comprehensive inventory management of all installed software components, conduct regular security assessments, and implement robust patch management procedures. Organizations should also consider implementing automated monitoring solutions that can detect unauthorized access attempts or configuration changes that might indicate exploitation of similar vulnerabilities. The incident serves as a reminder that even seemingly benign extensions can create substantial attack vectors when not properly configured or maintained according to security best practices.