CVE-2025-9262 is a security vulnerability identified in version 1.13.0 of the wong2 mcp-cli software, specifically within the redirectToAuthorization function located in the /src/oauth/provider.js file, which is part of the OAuth Handler component. This vulnerability is an OS command injection flaw, meaning that an attacker can manipulate input parameters to execute arbitrary operating system commands on the affected system. The vulnerability can be exploited remotely without requiring authentication or user interaction, but the attack complexity is high and exploitability is considered difficult. The vendor has not responded to disclosure attempts, and no patches have been released as of the publication date. The CVSS 4.0 base score is 6.3 (medium severity), reflecting the network attack vector, high attack complexity, and no privileges or user interaction required. The impact on confidentiality, integrity, and availability is rated low, indicating limited but non-negligible consequences if exploited. Although no known exploits are currently observed in the wild, the existence of a published exploit increases the risk of future attacks. The vulnerability arises from improper input validation or sanitization in the OAuth handler, allowing crafted inputs to be interpreted as OS commands, potentially leading to unauthorized command execution and system compromise.

For European organizations using wong2 mcp-cli version 1.13.0, this vulnerability poses a risk of unauthorized remote code execution, which could lead to partial system compromise, data leakage, or disruption of OAuth-based authentication flows. While the impact is rated medium, exploitation could allow attackers to execute arbitrary commands, potentially affecting the confidentiality and integrity of sensitive data managed by the affected systems. Given the OAuth component's role in authentication and authorization, exploitation could also undermine trust in identity management processes. The high complexity and difficulty of exploitation reduce the immediate threat level, but organizations should remain vigilant, especially those in sectors with high reliance on OAuth integrations such as finance, healthcare, and government services. The lack of vendor response and absence of patches increase the risk exposure, as organizations must rely on mitigation strategies until an official fix is available.

Since no official patch is currently available, European organizations should implement the following specific mitigations: 1) Conduct an immediate audit of all systems running wong2 mcp-cli 1.13.0 to identify affected instances. 2) Restrict network access to the mcp-cli service, limiting it to trusted internal networks or VPNs to reduce remote attack surface. 3) Employ Web Application Firewalls (WAFs) or intrusion detection/prevention systems (IDS/IPS) with custom rules to detect and block suspicious input patterns targeting the OAuth handler, especially those attempting command injection. 4) Implement strict input validation and sanitization at the application or proxy level where possible to neutralize malicious payloads before they reach the vulnerable function. 5) Monitor logs for unusual command execution attempts or anomalies in OAuth authorization flows. 6) Consider temporary disabling or isolating the OAuth handler component if feasible until a patch is released. 7) Engage with wong2 vendor or community forums for updates or unofficial patches. 8) Plan for rapid deployment of patches once available and integrate vulnerability scanning for this CVE into regular security assessments.