CVE-2026-76603 in Extension
Summary
by MITRE • 08/22/2026
Joomla Extension - fabrikar.com - Unauthenticated row disclosure via form.inlineedit in Fabrik < 4.7.2 - The inineedit form controller does not perform any access checks, disclosing items to unauthorized users.
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Analysis
by VulDB Data Team • 08/24/2026
The vulnerability identified within the Fabrik extension for Joomla versions prior to 4.7.3 represents a critical failure in server-side access control mechanisms. Specifically, the flaw resides in the inlineEdit form controller, which is designed to facilitate dynamic editing of database records directly from the frontend interface. In its vulnerable state, this component fails to validate whether the requesting user possesses the necessary permissions or authentication credentials to view specific data rows. This absence of authorization checks allows any individual accessing the application, including unauthenticated visitors and malicious actors without valid login sessions, to retrieve sensitive information stored in the backend database through standard HTTP requests targeting the inlineEdit endpoint.
From a technical perspective, this issue is classified under CWE-284, which describes Improper Access Control. The root cause lies in the logic flow of the form controller where data retrieval operations are executed without verifying user roles or ownership rights against the requested resource identifiers. By manipulating parameters such as record IDs within API calls or AJAX requests directed at the inlineEdit functionality, an attacker can bypass standard Joomla access control layers that typically govern content visibility. This effectively turns a feature intended for authorized users into a vector for unauthorized data exfiltration, undermining the fundamental security principle of least privilege and ensuring that confidential information remains protected only by obscurity rather than enforced policy.
The operational impact of this vulnerability is significant, particularly in environments where Fabrik is used to manage user-specific or sensitive organizational data. Unauthorized disclosure of rows can lead to a comprehensive breach of confidentiality, exposing personally identifiable information, financial records, internal communications, or other proprietary datasets depending on the specific implementation and database schema utilized by the website administrator. For organizations relying on Joomla for customer relationship management or internal operations, this flaw could result in regulatory non-compliance with data protection laws such as GDPR or HIPAA, potential reputational damage, and loss of trust among stakeholders who expect their data to be secured against external access attempts.
To mitigate this risk, administrators must immediately update the Fabrik extension to version 4.7.3 or later, where these access control checks have been implemented in the inlineEdit controller logic. Until an upgrade is feasible, temporary mitigations include restricting public access to the specific components and views associated with Fabrik through Joomla's global configuration settings or web application firewall rules that block suspicious patterns targeting form controllers without valid session tokens. Furthermore, security audits should be conducted to ensure no other endpoints within the extension suffer from similar authorization bypasses, as this type of flaw often indicates a broader pattern of insufficient input validation and access verification across multiple modules.
In terms of threat intelligence frameworks, this vulnerability aligns with MITRE ATT&CK technique T1078, Valid Accounts, specifically in scenarios where attackers might attempt to exploit misconfigurations or lack thereof to gain initial footholds or data access without needing valid credentials initially. It also relates to the broader category of broken access control which is consistently ranked among the top risks for web applications by industry standards like OWASP. Addressing this issue requires not only patching the specific code defect but also reinforcing a security-first development mindset where every endpoint, especially those handling dynamic data manipulation and retrieval, undergoes rigorous testing for proper authorization enforcement before deployment to production environments.