CVE-2025-9262 in mcp-cli
Summary
by MITRE • 08/21/2025
A flaw has been found in wong2 mcp-cli 1.13.0. Affected is the function redirectToAuthorization of the file /src/oauth/provider.js of the component oAuth Handler. This manipulation causes os command injection. The attack may be initiated remotely. The attack is considered to have high complexity. The exploitability is told to be difficult. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
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Analysis
by VulDB Data Team • 09/13/2025
The vulnerability identified as CVE-2025-9262 represents a critical command injection flaw within the wong2 mcp-cli 1.13.0 software package. This security weakness specifically resides in the redirectToAuthorization function located within the /src/oauth/provider.js file of the OAuth Handler component. The flaw enables attackers to execute arbitrary operating system commands through manipulation of the affected function, creating a severe security risk for systems utilizing this software. The vulnerability's remote exploitability means that attackers can potentially compromise affected systems without requiring physical access or local privileges, making it particularly dangerous in networked environments.
The technical implementation of this vulnerability stems from inadequate input validation and sanitization within the OAuth authorization flow. When the redirectToAuthorization function processes user-supplied parameters, it fails to properly escape or filter special characters that could be interpreted as command delimiters or injection sequences. This allows malicious actors to inject operating system commands that get executed by the underlying system shell, potentially leading to complete system compromise. The attack complexity is rated as high due to the specialized knowledge required to craft effective payloads, though the published exploit demonstrates that such attacks are indeed feasible. The vulnerability's classification under CWE-78, which specifically addresses OS Command Injection, highlights the fundamental nature of this security weakness.
The operational impact of CVE-2025-9262 extends beyond simple command execution, potentially enabling attackers to perform a wide range of malicious activities including data exfiltration, privilege escalation, system reconnaissance, and persistence establishment. Organizations using wong2 mcp-cli 1.13.0 may face unauthorized access to sensitive data, system corruption, and potential lateral movement within their network infrastructure. The fact that the vendor did not respond to early disclosure attempts creates additional operational challenges, as organizations must rely on community-driven mitigation strategies while the vulnerability remains unpatched. This lack of vendor response also indicates potential security gaps in the software supply chain that organizations should consider when evaluating their risk exposure.
Mitigation strategies for CVE-2025-9262 should prioritize immediate protective measures given the published exploit availability. Organizations should implement network segmentation and firewall rules to restrict access to affected systems, particularly those exposed to untrusted networks. Input validation should be strengthened at all entry points, with special character filtering and parameter sanitization implemented to prevent command injection attempts. The most effective long-term solution involves upgrading to a patched version of wong2 mcp-cli or implementing alternative OAuth handling mechanisms. Security monitoring should be enhanced to detect suspicious command execution patterns and unusual network activity related to the affected software. Additionally, organizations should conduct thorough vulnerability assessments of their software supply chain to identify other potentially vulnerable components that may share similar security weaknesses. The ATT&CK framework's T1059.003 technique for command and scripting interpreter provides relevant context for understanding how this vulnerability could be exploited in real-world scenarios.