WordPress Event Monster Plugin <= 1.4.0 - Sensitive Data Exposure vulnerability

Vulnerability

The Event Management Tickets Booking plugin for WordPress (versions from n/a through 1.4.0) contains an Exposure of Sensitive Information to an Unauthorized Actor vulnerability [1]. The plugin fails to properly restrict access to sensitive data, allowing unauthenticated users to obtain information that should be protected. The vulnerable versions are those prior to the fix; the plugin was later renamed to "Event Monster" starting at version 2.0.1 [1].

Exploitation

An attacker can exploit this vulnerability by sending crafted requests to the WordPress site without requiring any authentication [1]. The plugin's insufficient access controls allow an unauthorized actor to retrieve sensitive information that should be hidden from public view. No special privileges or user interaction is required, making exploitation straightforward.

Impact

Successful exploitation leads to the disclosure of sensitive information to unauthorized actors [1]. The exact type of data exposed is not detailed in the reference, but the classification as "Exposure of Sensitive Information" implies that confidential or private data (such as user details, ticket order data, or internal configuration values) could be leaked. This violates the confidentiality aspect of the CIA triad and may lead to further privacy or security concerns.

Mitigation

The vendor has addressed this issue in version 2.0.1 of the renamed plugin "Event Monster – Manager & Ticket Booking" [1]. Users should update to version 2.0.1 or later as soon as possible. For users who cannot update, there is no workaround provided in the available references. The plugin's changelog or security announcements should be consulted for further details.