CVE-2025-57987 is a Missing Authorization vulnerability (CWE-862) identified in the ThimPress WP Events Manager plugin for WordPress. This vulnerability arises due to improperly configured access control mechanisms within the plugin, which allows unauthorized users to perform certain actions that should be restricted. Specifically, the flaw exists in versions up to 2.2.1 of WP Events Manager, where the plugin fails to adequately verify whether a user has the necessary permissions before allowing access to certain functionalities or data modifications. The CVSS 3.1 base score of 5.3 (medium severity) reflects that the vulnerability can be exploited remotely over the network (AV:N) without any authentication (PR:N) or user interaction (UI:N). The impact is limited to integrity (I:L), meaning an attacker can modify data or state in the system but cannot affect confidentiality or availability. No known exploits are currently reported in the wild, and no patches or fixes have been linked yet. The vulnerability is significant because WordPress plugins like WP Events Manager are widely used to manage event-related content on websites, and improper authorization checks can lead to unauthorized data manipulation or privilege escalation within the context of the plugin's features. Given that the vulnerability does not require authentication or user interaction, it could be exploited by any remote attacker scanning for vulnerable sites, potentially leading to unauthorized changes in event data or configurations.

For European organizations, the impact of this vulnerability depends largely on the extent to which WP Events Manager is deployed within their WordPress environments. Organizations using this plugin to manage event registrations, schedules, or other critical event-related data may face risks of unauthorized data tampering, which could disrupt event operations or lead to misinformation being published. Although the vulnerability does not directly compromise confidentiality or availability, integrity violations can undermine trust in the affected websites and potentially cause reputational damage. For sectors such as education, public administration, or event management companies in Europe that rely on WordPress for their event platforms, this vulnerability could be exploited to alter event details, registrations, or attendee information. This could lead to operational disruptions or compliance issues, especially where event data is linked to regulatory reporting or contractual obligations. The lack of known exploits in the wild suggests limited immediate threat, but the ease of exploitation (no authentication or user interaction required) means attackers could develop exploits quickly once the vulnerability becomes widely known.

European organizations should immediately audit their WordPress installations to identify the presence of the WP Events Manager plugin, particularly versions up to 2.2.1. Until an official patch is released, organizations should consider the following specific mitigations: 1) Restrict access to the WordPress admin and plugin endpoints using web application firewall (WAF) rules or IP whitelisting to limit exposure to unauthorized users. 2) Implement strict role-based access controls within WordPress to minimize the permissions granted to users and ensure that only trusted administrators can manage event-related content. 3) Monitor logs for unusual activity related to the WP Events Manager plugin endpoints, such as unexpected POST or GET requests that could indicate exploitation attempts. 4) If feasible, temporarily disable or deactivate the WP Events Manager plugin until a security update is available. 5) Engage with the plugin vendor (ThimPress) to obtain timelines for patches or security updates and subscribe to vulnerability advisories for timely information. 6) Consider deploying intrusion detection/prevention systems (IDS/IPS) tuned to detect exploitation patterns related to missing authorization vulnerabilities in WordPress plugins.