CVE-2014-1889 in BuddyPress plugin
Summary
by MITRE
The Group creation process in the Buddypress plugin before 1.9.2 for WordPress allows remote authenticated users to gain control of arbitrary groups by leveraging a missing permissions check.
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Analysis
by VulDB Data Team • 06/08/2025
The vulnerability described in CVE-2014-1889 represents a critical authorization flaw within the BuddyPress plugin ecosystem for WordPress. This issue affects versions prior to 1.9.2 and specifically targets the group creation functionality that forms a core component of the social networking features provided by BuddyPress. The vulnerability stems from a missing permissions check during the group creation process, which allows authenticated users to manipulate the system in ways that were not intended by the developers. This flaw fundamentally undermines the access control mechanisms that should prevent unauthorized users from assuming administrative roles within specific group contexts.
The technical implementation of this vulnerability exploits the lack of proper validation within the group creation workflow. When authenticated users attempt to create or modify groups, the system fails to verify whether the user possesses the necessary privileges to perform these actions on the target group. This missing validation creates a path where malicious actors can leverage their authenticated status to gain control over arbitrary groups within the platform. The flaw operates at the application logic level, specifically within the group management component of BuddyPress, where proper authorization checks should have been implemented but were absent. This type of vulnerability falls under the category of insufficient authorization checks as defined by CWE-862, which directly relates to the failure to properly verify user permissions before allowing access to protected resources.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it can lead to complete compromise of group-based social structures within WordPress installations. An authenticated attacker can create groups with elevated privileges, potentially gaining administrative control over existing groups and manipulating group membership, content, and settings. This vulnerability particularly affects WordPress installations that rely heavily on BuddyPress for community management, as it allows unauthorized users to assume control over specific group contexts, potentially leading to data manipulation, content injection, or even complete group takeover. The consequences can be severe for organizations using WordPress with BuddyPress for collaborative environments, as the vulnerability enables attackers to disrupt group communications and potentially access sensitive information shared within these communities. The flaw also aligns with ATT&CK technique T1078.004 which covers legitimate credentials and privilege escalation through unauthorized access to group management functions.
The mitigation strategy for CVE-2014-1889 involves immediate patching of the BuddyPress plugin to version 1.9.2 or later, which contains the necessary authorization checks. System administrators should also implement additional monitoring for unusual group creation activities and review user permissions regularly to detect any unauthorized access patterns. Organizations should ensure their WordPress installations maintain current versions of all plugins and themes, as this vulnerability demonstrates the critical importance of keeping software updated. The fix implemented in version 1.9.2 addresses the root cause by adding proper authorization checks that validate user permissions before allowing group creation or modification operations, ensuring that only users with appropriate privileges can control specific groups within the system. This vulnerability serves as a reminder of the critical importance of implementing proper access controls and authorization mechanisms in web applications, particularly in social networking platforms where user interactions can have significant operational implications.