CVE-2025-53100 is a high-severity vulnerability affecting the RestDB Codehooks.io MCP Server, specifically versions prior to 0.2.2. The vulnerability is classified under CWE-78, which corresponds to improper neutralization of special elements used in an OS command, commonly known as OS Command Injection. The MCP Server component is part of the Codehooks.io platform, which facilitates server-side logic execution. Due to insufficient input sanitization or validation in some MCP Server tools definitions and implementations, an attacker can inject arbitrary operating system commands. This injection occurs because user-supplied input is incorporated into OS commands without proper neutralization of special characters or command delimiters. Exploitation does not require authentication or privileges and can be triggered remotely over the network, with only user interaction needed. The CVSS 4.0 base score is 8.6, reflecting the network attack vector, low attack complexity, no privileges required, but requiring user interaction. The vulnerability impacts confidentiality, integrity, and availability at a high level, as arbitrary commands can be executed, potentially leading to data exfiltration, system compromise, or denial of service. The issue was addressed in version 0.2.2 by patching the vulnerable code to properly sanitize inputs and prevent command injection. No known exploits are currently reported in the wild, but the severity and ease of exploitation make this a critical patch for affected users.

For European organizations using RestDB's Codehooks.io MCP Server, this vulnerability poses a significant risk. Exploitation could allow attackers to execute arbitrary commands on the MCP Server, leading to unauthorized access to sensitive data, disruption of services, or full system compromise. Organizations relying on this platform for backend logic or data processing could face data breaches, operational downtime, or reputational damage. Given the network-exposed nature of the MCP Server and lack of required privileges for exploitation, attackers could leverage phishing or social engineering to induce user interaction and trigger the attack. This risk is amplified in sectors with stringent data protection requirements such as finance, healthcare, and government institutions within Europe. Additionally, the potential for lateral movement within networks after initial compromise could escalate the impact. The absence of known exploits currently provides a window for proactive mitigation before widespread attacks occur.

European organizations should immediately verify their use of RestDB Codehooks.io MCP Server and confirm the version in deployment. Systems running versions prior to 0.2.2 must be upgraded to the patched version without delay. Where immediate upgrade is not feasible, organizations should implement strict input validation and sanitization at the application layer to prevent injection of special characters or command delimiters. Network-level controls such as firewall rules should restrict access to the MCP Server to trusted IP addresses only. Monitoring and logging of MCP Server activities should be enhanced to detect anomalous command executions or unexpected user interactions. Employing Web Application Firewalls (WAFs) with custom rules to detect command injection patterns can provide an additional defense layer. User awareness training to reduce the risk of social engineering attacks that could trigger user interaction is also recommended. Finally, organizations should conduct penetration testing and code reviews focused on command injection vectors in their custom MCP Server tools implementations.