CVE-2026-66452 in Legal Texts Connector Plugin
Summary
by MITRE • 08/06/2026
Unauthenticated Broken Access Control in Legal Text Connector of the IT-Recht Kanzlei <= 1.0.13 versions.
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Analysis
by VulDB Data Team • 08/06/2026
The vulnerability identified in the Legal Text Connector component of IT-Recht Kanzlei software versions 1.0.13 and earlier represents a critical broken access control flaw that allows unauthenticated attackers to bypass authorization mechanisms and gain unauthorized access to sensitive functionalities. This issue stems from inadequate validation of user authentication status within the connector's access control implementation, creating a pathway for malicious actors to exploit the system without proper credentials.
This vulnerability falls under the CWE-285 category of improper access control, specifically manifesting as an unauthenticated access control failure that enables attackers to perform operations typically restricted to authenticated users. The flaw exists in the software's authentication flow where the system fails to properly verify user identity before granting access to protected resources or functions within the Legal Text Connector module.
The operational impact of this vulnerability is significant as it allows unauthorized individuals to access confidential legal documents, modify text content, or perform administrative actions without proper authorization. Attackers could potentially manipulate legal texts, alter document contents, or access sensitive information that should only be available to authorized personnel within the legal practice environment. The affected system may also expose internal processes or data structures that would normally be protected from external access.
From a threat modeling perspective, this vulnerability aligns with ATT&CK technique T1078 which covers valid accounts and credential access, as attackers could leverage this flaw to gain access to systems without needing to first compromise legitimate user credentials. The attack vector typically involves sending crafted requests to the connector's endpoints without authentication headers or tokens, allowing the system to process the requests under assumed privileged contexts.
Mitigation strategies should include implementing robust authentication checks at all entry points within the Legal Text Connector module, ensuring that every request undergoes proper verification before processing. Organizations should enforce mandatory authentication for all API endpoints and implement proper session management controls. Additionally, regular security testing including penetration testing and vulnerability scanning should be conducted to identify similar access control flaws in other components of the system architecture.
The remediation process requires updating the software to versions that address this specific access control implementation issue, while also implementing comprehensive logging mechanisms to detect unauthorized access attempts. Security configuration reviews should ensure that default settings do not inadvertently allow unauthenticated access to sensitive functionality. Organizations should also consider implementing network segmentation and additional monitoring controls to detect anomalous behavior patterns that might indicate exploitation attempts against this vulnerability.
This type of vulnerability highlights the importance of proper input validation and authentication implementation in security-critical components, particularly in legal software environments where data protection and confidentiality are paramount requirements under various regulatory frameworks including gdpr and other data protection laws. The flaw demonstrates how seemingly simple access control mechanisms can create significant security risks when not properly implemented and tested against common attack patterns.