CVE-2025-69415 is a vulnerability identified in Plex Media Server (PMS) up to version 1.42.2.10156, classified under CWE-672, which pertains to operations on resources after expiration or release. The issue arises because the server improperly aligns access permissions to the /myplex/account endpoint with the current association status of the device token used. Specifically, a device token that should no longer be valid or associated with an account can still be used to access sensitive account information. This flaw allows an attacker with a valid device token—potentially obtained through prior legitimate use or interception—to perform unauthorized operations on account resources, leading to a breach of confidentiality and partial integrity compromise. The CVSS 3.1 base score is 7.1 (high), reflecting network attack vector (AV:N), high attack complexity (AC:H), low privileges required (PR:L), no user interaction (UI:N), scope changed (S:C), high confidentiality impact (C:H), low integrity impact (I:L), and no availability impact (A:N). The vulnerability does not require user interaction but is somewhat complex to exploit, likely due to the need to obtain or reuse a valid device token. No public exploits have been reported yet. The vulnerability affects all versions up to 1.42.2.10156, with no patch links currently available, indicating a need for vendor action. This vulnerability could be leveraged to gain unauthorized access to user account information, potentially exposing personal data and media usage details.

For European organizations, the impact of CVE-2025-69415 can be significant, particularly for those using Plex Media Server in corporate, educational, or media production environments. Unauthorized access to account information could lead to exposure of sensitive user data, including personal details and media consumption habits, which may violate GDPR and other privacy regulations. The integrity of account data could be partially compromised, potentially allowing attackers to manipulate account settings or device associations. Although availability is not affected, the breach of confidentiality could damage organizational reputation and trust. Media companies, content distributors, and enterprises relying on Plex for internal media sharing are at risk of targeted exploitation. The complexity of exploitation and requirement for a device token limit widespread automated attacks but do not eliminate risk from insider threats or targeted attackers. The lack of known exploits in the wild currently reduces immediate risk but underscores the importance of proactive mitigation.

Organizations should monitor Plex vendor communications for official patches addressing CVE-2025-69415 and apply them promptly once available. In the interim, administrators should audit device token issuance and revocation processes to ensure tokens are invalidated immediately upon device disassociation. Implement network segmentation to restrict access to Plex Media Server endpoints, especially /myplex/account, limiting exposure to trusted networks and authenticated users only. Employ enhanced logging and monitoring to detect anomalous access patterns involving device tokens. Consider enforcing multi-factor authentication (MFA) for account access where possible to reduce token misuse risk. Regularly review and update session management policies to prevent token reuse after expiration. If feasible, temporarily disable remote access features or restrict them to VPN connections until the vulnerability is resolved. Educate users about the risks of sharing device tokens and encourage strong credential hygiene. Finally, conduct penetration testing focused on token validation mechanisms to identify potential weaknesses.