CVE-2024-10363 is a vulnerability classified under CWE-862 (Missing Authorization) affecting the open-source project danny-avila/librechat, specifically version 0.7.5. LibreChat is a chat application that allows users to create, share, and use prompts, which are predefined inputs or commands that guide the chat behavior. The vulnerability arises because the application lacks proper access control mechanisms to verify whether a user has the necessary permissions before performing prompt-related actions. As a result, any user, including those with limited privileges, can create, share, or use prompts without admin approval. This breaks the intended application logic and permission model, potentially allowing unauthorized users to inject malicious or inappropriate prompts, manipulate chat behavior, or escalate privileges within the application context. The CVSS 3.0 base score is 5.4, indicating a medium severity level. The vector (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N) shows that the attack can be performed remotely over the network with low attack complexity, requires low privileges, no user interaction, and impacts confidentiality and integrity but not availability. No patches or fixes are currently linked, and no known exploits have been reported in the wild. This vulnerability highlights the importance of enforcing strict authorization checks in multi-user collaborative applications, especially those handling user-generated content or commands.

For European organizations using danny-avila/librechat, this vulnerability could lead to unauthorized manipulation of chat prompts, which may result in the execution of unintended commands or dissemination of misleading or malicious information. This can compromise the confidentiality and integrity of communications within the application. In environments where LibreChat is integrated with sensitive workflows or data, unauthorized prompt creation could lead to privilege escalation or data leakage. Although availability is not directly impacted, the trustworthiness and reliability of the chat system may be undermined. Organizations in sectors such as education, research, or customer support that rely on LibreChat for AI-driven interactions could face operational disruptions or reputational damage if attackers exploit this flaw. The medium severity score suggests a moderate risk, but the ease of exploitation and lack of required user interaction increase the likelihood of exploitation if the vulnerability is not addressed promptly.

To mitigate CVE-2024-10363, organizations should implement strict access control mechanisms within LibreChat to ensure that only authorized administrators can create, share, or modify prompts. This includes enforcing role-based access control (RBAC) policies and validating user permissions on the server side before processing prompt-related requests. Regularly audit user roles and permissions to detect any unauthorized changes. Since no official patch is currently available, consider applying custom patches or configuration changes to restrict prompt management functionality. Monitor application logs for unusual prompt creation or sharing activities that could indicate exploitation attempts. Educate users and administrators about the risks of unauthorized prompt manipulation and establish incident response procedures to quickly address any suspicious behavior. Additionally, evaluate the necessity of using LibreChat in sensitive environments until a secure version is released. Engage with the vendor or open-source community to track updates and apply patches as soon as they become available.