CVE-2025-63065 identifies an authorization bypass vulnerability in the Media Library Assistant plugin developed by David Lingren, affecting all versions up to and including 3.30. The vulnerability stems from incorrectly configured access control security levels that allow an attacker to manipulate a user-controlled key to bypass authorization mechanisms. Specifically, the plugin fails to properly validate permissions when processing certain keys or parameters controlled by users, enabling privilege escalation or unauthorized access to media library functions. The vulnerability requires the attacker to have at least low-level privileges (PR:L) and network access (AV:N), but no user interaction is needed (UI:N). The CVSS 3.1 vector indicates a medium attack complexity (AC:L), with limited confidentiality and integrity impacts (C:L/I:L) and no availability impact (A:N). Although no public exploits are currently known, the flaw could allow unauthorized users to view or modify media library content, potentially exposing sensitive media assets or corrupting data. The issue affects WordPress sites using this plugin, which is commonly employed for enhanced media management. The vulnerability was reserved in late October 2025 and published in December 2025, with no patch links currently available, indicating that remediation may still be pending. The root cause is the failure to enforce proper access control checks on user-supplied keys, a common security misconfiguration in web applications and plugins.

For European organizations, this vulnerability poses a moderate risk primarily to confidentiality and integrity of media assets managed via WordPress sites using the Media Library Assistant plugin. Unauthorized users with low-level privileges could exploit the flaw to access or alter media files, potentially leading to data leakage, intellectual property exposure, or defacement of digital content. While availability is not impacted, the integrity compromise could disrupt business operations relying on accurate media content. Organizations in sectors such as media, publishing, education, and e-commerce that rely heavily on WordPress for content management are particularly at risk. The lack of known exploits reduces immediate threat but also means organizations should proactively address the vulnerability before attackers develop exploits. The medium CVSS score reflects a balance between ease of exploitation and limited impact scope, but the risk increases if combined with other vulnerabilities or insider threats.

European organizations should immediately audit their WordPress installations to identify the presence and version of the Media Library Assistant plugin. Until an official patch is released, administrators should restrict plugin access to trusted users only and consider disabling or removing the plugin if not essential. Review and harden access control configurations within the plugin settings to ensure that user-controlled keys cannot bypass authorization checks. Implement strict role-based access controls (RBAC) in WordPress to limit privileges of users interacting with media libraries. Monitor logs for unusual access patterns or unauthorized attempts to manipulate media content. Stay alert for vendor updates or security advisories from David Lingren or the WordPress plugin repository and apply patches promptly once available. Additionally, consider deploying web application firewalls (WAFs) with custom rules to detect and block suspicious requests targeting the plugin’s endpoints. Conduct regular security assessments and penetration tests focusing on plugin vulnerabilities to identify similar misconfigurations.