CVE-2025-30957 is a medium-severity vulnerability classified under CWE-862 (Missing Authorization) affecting the WordPress plugin 'Activity Plus Reloaded for BuddyPress' developed by BuddyDev. This plugin extends BuddyPress functionality, which is widely used to create social networking features on WordPress sites. The vulnerability arises from improperly configured access control mechanisms, allowing users with limited privileges (requiring at least some level of authentication) to perform unauthorized actions that should be restricted. Specifically, the flaw permits privilege escalation or unauthorized modification of data, impacting the integrity and availability of the affected system. The CVSS 3.1 score of 5.4 reflects a network attack vector (AV:N), low attack complexity (AC:L), requiring privileges (PR:L), no user interaction (UI:N), unchanged scope (S:U), no confidentiality impact (C:N), but with integrity (I:L) and availability (A:L) impacts. The vulnerability affects all versions up to 1.1.2 of the plugin, with no patch currently available as per the provided data. No known exploits are reported in the wild yet, but the presence of this vulnerability in a popular WordPress plugin used in social networking contexts poses a risk of unauthorized content manipulation or service disruption.

For European organizations, especially those using WordPress-based community or social networking platforms with BuddyPress and the Activity Plus Reloaded plugin, this vulnerability could lead to unauthorized modification or deletion of user-generated content, disruption of social features, or denial of service conditions. This can damage organizational reputation, reduce user trust, and potentially lead to data integrity issues. Since the vulnerability requires some level of authenticated access, insider threats or compromised user accounts could be leveraged to exploit it. Organizations relying on these plugins for customer engagement, internal collaboration, or community management may face operational disruptions and increased risk of targeted attacks exploiting this flaw.

Given the absence of an official patch, European organizations should immediately audit their WordPress installations to identify the presence of the Activity Plus Reloaded plugin and its version. If found, consider disabling or uninstalling the plugin until a security update is released. Implement strict user privilege management to minimize the number of users with elevated access rights and monitor user activities for suspicious behavior. Employ Web Application Firewalls (WAFs) with custom rules to detect and block anomalous requests targeting BuddyPress plugin endpoints. Regularly back up WordPress sites and databases to enable quick restoration in case of exploitation. Engage with the plugin vendor or community to track patch releases and apply updates promptly. Additionally, conduct penetration testing focused on authorization controls within the BuddyPress environment to identify any other potential weaknesses.