CVE-2025-64631 identifies a missing authorization vulnerability in the WC Lovers WCFM Marketplace WordPress plugin, specifically affecting versions up to 3.6.15. This vulnerability arises from incorrectly configured access control security levels, allowing attackers with limited privileges (PR:L) to perform actions without proper authorization. The vulnerability does not require user interaction (UI:N) and can be exploited remotely over the network (AV:N). The scope is changed (S:C), meaning the exploit can affect resources beyond the initially compromised component. The impact is limited to availability (A:L), with no direct confidentiality or integrity compromise. This could manifest as denial of service or disruption of marketplace functionality. No known exploits have been reported in the wild, and no official patches are currently linked, indicating the need for vigilance. The plugin is widely used in WordPress-based e-commerce sites to enable multi-vendor marketplace capabilities, making this vulnerability relevant to online retail platforms. The CVSS score of 5.0 reflects a medium severity, balancing the ease of exploitation against the limited impact. The vulnerability highlights the importance of strict access control enforcement in multi-vendor environments where different user roles interact with marketplace features.

For European organizations, especially those operating e-commerce platforms using WordPress and the WCFM Marketplace plugin, this vulnerability could lead to service disruptions or denial of service conditions, impacting availability. Although confidentiality and integrity are not directly affected, availability issues can cause significant business interruptions, loss of customer trust, and potential financial losses. Organizations relying on multi-vendor marketplaces may experience operational challenges if attackers exploit this flaw to disrupt vendor interactions or marketplace operations. The medium severity indicates that while the threat is not critical, it should not be ignored, particularly for high-traffic or revenue-critical e-commerce sites. The absence of known exploits reduces immediate risk but does not eliminate the potential for future attacks. European data protection regulations emphasize service availability, so prolonged disruptions could also have compliance implications.

Organizations should monitor WC Lovers announcements and apply security patches promptly once released. In the absence of official patches, review and tighten user roles and permissions within the WordPress environment to minimize privilege levels granted to users interacting with the marketplace. Implement additional access control mechanisms such as web application firewalls (WAFs) with custom rules to detect and block unauthorized access attempts targeting marketplace endpoints. Conduct regular security audits and penetration testing focused on access control enforcement in multi-vendor plugins. Consider isolating the marketplace environment or limiting exposure to trusted users only until a patch is available. Maintain comprehensive logging and monitoring to detect unusual activity indicative of exploitation attempts. Educate administrators and developers about secure configuration practices for multi-vendor marketplaces to prevent similar vulnerabilities.