CVE-2026-51924 in docuForm
Summary
by MITRE • 07/10/2026
An issue in docuForm GmbH Client v.11.11c allows a remote attacker to execute arbitrary code via the file upload and report.php component
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Analysis
by VulDB Data Team • 07/10/2026
The vulnerability identified in docuForm GmbH Client version 11.11c represents a critical remote code execution flaw that arises from inadequate input validation within the file upload functionality of the report.php component. This issue enables malicious actors to upload specially crafted files that can be executed on the target system, potentially leading to complete system compromise and unauthorized access to sensitive data. The vulnerability stems from insufficient sanitization of user-supplied file names and content, allowing attackers to bypass security controls through carefully constructed payloads.
This flaw falls under the category of CWE-434 Unrestricted Upload of File with Dangerous Type, which is classified as a common weakness in software development practices that fail to properly validate file uploads. The vulnerability operates by leveraging the report.php component's lack of proper file type checking and content validation mechanisms, enabling attackers to upload malicious scripts or executables that can be executed within the web application context. The attack surface is particularly concerning given that the vulnerability exists in a client-side application that may have elevated privileges or access to sensitive system resources.
The operational impact of this vulnerability extends beyond simple code execution, as it provides attackers with persistent access to compromised systems and potential lateral movement capabilities within network environments. Attackers can leverage this vulnerability to establish backdoors, exfiltrate data, modify system configurations, or deploy additional malicious payloads. The remote nature of the exploit means that attackers do not require physical access to the target system, making the vulnerability particularly dangerous in enterprise environments where such applications may be exposed to external networks.
From a threat modeling perspective, this vulnerability aligns with ATT&CK technique T1059 Command and Scripting Interpreter, as it allows adversaries to execute arbitrary commands through uploaded scripts. The attack chain typically involves uploading malicious files through the vulnerable upload interface, followed by triggering execution through the report.php component. Organizations should implement immediate mitigations including input validation controls, file type restrictions, and proper access controls for upload functionality. Network segmentation and monitoring of file upload activities can help detect potential exploitation attempts, while regular security updates and patches should be applied to address the underlying vulnerability.
The broader implications of this vulnerability highlight the importance of secure coding practices and comprehensive security testing in software development lifecycle processes. Organizations using docuForm GmbH Client should conduct thorough security assessments of their deployment environments and implement additional defensive measures including web application firewalls, file integrity monitoring, and regular penetration testing to identify similar vulnerabilities across their application portfolio.