CVE-2025-57631 is a SQL Injection vulnerability identified in TDuckCloud version 5.1. This vulnerability arises from improper sanitization or validation of user inputs in the 'Add a file upload' module of the application. An attacker can exploit this flaw by injecting malicious SQL code through the file upload interface, which the backend database then executes. This can lead to unauthorized execution of arbitrary code on the server, potentially allowing the attacker to manipulate or extract sensitive data, escalate privileges, or compromise the integrity and availability of the affected system. The vulnerability is remote exploitable, meaning no physical or local access is required, and it does not specify any authentication requirements, which increases the attack surface. Although no known exploits are currently reported in the wild, the nature of SQL Injection vulnerabilities makes them highly attractive targets for attackers due to the potential for significant impact. The lack of a CVSS score indicates that the vulnerability is newly published and may not yet have been fully assessed or patched. The absence of patch links suggests that remediation may not yet be available, emphasizing the need for immediate attention from organizations using TDuckCloud 5.1.

For European organizations using TDuckCloud version 5.1, this vulnerability poses a significant risk. Exploitation could lead to unauthorized access to sensitive business data, including customer information, intellectual property, and internal communications. This could result in data breaches that violate GDPR and other data protection regulations, leading to legal penalties and reputational damage. The ability to execute arbitrary code remotely also raises concerns about potential lateral movement within networks, ransomware deployment, or disruption of critical services. Industries such as finance, healthcare, and government entities in Europe, which often rely on secure data handling and regulatory compliance, could face severe operational and financial consequences. The vulnerability could also undermine trust in cloud-based services and delay digital transformation initiatives if not addressed promptly.

European organizations should immediately conduct a thorough security review of their TDuckCloud deployments, focusing on version 5.1 and the 'Add a file upload' module. Until an official patch is released, organizations should implement strict input validation and sanitization at the application layer, employing web application firewalls (WAFs) with custom rules to detect and block SQL injection attempts targeting the file upload functionality. Network segmentation should be enforced to limit the potential spread of an attacker if exploitation occurs. Monitoring and logging should be enhanced to detect unusual database queries or file upload activities. Organizations should also consider temporarily disabling or restricting the file upload module if feasible. Engaging with the vendor for timely updates and patches is critical. Additionally, conducting penetration testing and code reviews focused on injection flaws can help identify and remediate similar vulnerabilities proactively.