CVE-2025-47777 is a critical security vulnerability affecting versions of the nanbingxyz 5ire client prior to 0.11.1. 5ire is a cross-platform desktop application functioning as an artificial intelligence assistant and model context protocol client, built on the Electron framework. The vulnerability arises from improper input validation (CWE-20) and stored cross-site scripting (CWE-79) in chatbot responses. Specifically, the application fails to sufficiently sanitize content received from chatbots or pasted external content. This flaw allows maliciously crafted input to be stored and later executed within the Electron environment. Due to unsafe handling of Electron protocols and exposed Electron APIs, this stored XSS can escalate to remote code execution (RCE) without requiring any privileges or authentication, only user interaction such as viewing or interacting with malicious chatbot responses. The CVSS v3.1 score of 9.7 reflects the critical nature of this vulnerability, with network attack vector, low attack complexity, no privileges required, but user interaction needed, and complete compromise of confidentiality, integrity, and availability. The vulnerability was publicly disclosed on May 14, 2025, and patched in version 0.11.1. No known exploits are currently reported in the wild, but the ease of exploitation and severity make it a high-risk threat for users of affected versions. Organizations using 5ire clients in environments where untrusted chatbots or external content are common are particularly vulnerable to targeted or opportunistic attacks leveraging this flaw.

For European organizations, this vulnerability poses a significant risk due to the potential for remote code execution on endpoints running vulnerable 5ire clients. Successful exploitation can lead to full system compromise, data theft, espionage, lateral movement within networks, and disruption of business operations. Given 5ire's role as an AI assistant, attackers could manipulate chatbot responses to deliver malicious payloads, potentially bypassing traditional security controls. The critical severity means that confidentiality, integrity, and availability of affected systems can be fully compromised. Organizations in sectors relying heavily on AI assistants for productivity or customer interaction, such as finance, healthcare, and technology, face elevated risks. Additionally, the cross-platform nature of 5ire means that both Windows and Linux/macOS endpoints may be affected, broadening the attack surface. The requirement for user interaction (e.g., viewing malicious chatbot content) means that social engineering or phishing could be used to trigger exploitation. This vulnerability could also be leveraged in supply chain attacks or targeted espionage campaigns against European entities.

1. Immediate upgrade to 5ire client version 0.11.1 or later, which contains the patch addressing this vulnerability. 2. Implement strict content sanitization and validation policies for chatbot inputs and any external content integrated into AI assistant workflows. 3. Restrict or monitor the use of untrusted chatbots and external content sources within organizational environments. 4. Employ endpoint detection and response (EDR) solutions capable of detecting anomalous Electron process behaviors indicative of exploitation attempts. 5. Educate users on the risks of interacting with untrusted chatbot responses or pasting content from unknown sources. 6. Apply application whitelisting and least privilege principles to limit the impact of potential RCE. 7. Monitor network traffic for unusual Electron protocol usage or unexpected outbound connections from 5ire clients. 8. Coordinate with vendors and security teams to ensure timely patch management and vulnerability disclosure awareness.