Executive Summary

This vulnerability is a Broken Access Control issue in the WordPress Event Rocket Plugin up to version 3.3. It occurs due to missing authorization, authentication, or nonce token checks in certain functions, which can allow users with Contributor-level privileges to perform actions that should be restricted to higher-privileged roles. [1]

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Impact Analysis

The vulnerability can allow unprivileged users (with Contributor privileges) to perform unauthorized actions reserved for higher-privileged roles. This could lead to unauthorized modifications or actions within the WordPress site, potentially compromising site integrity or security. However, the impact is considered low severity with a CVSS score of 4.3, and exploitation likelihood is low. [1]

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Detection Guidance

Detection of this vulnerability involves monitoring for unauthorized actions performed by users with Contributor privileges that should require higher privileges. Since the vulnerability is due to missing authorization checks in certain plugin functions, you can look for unusual access patterns or privilege escalations in your WordPress logs. Additionally, using server-side malware scanning and professional incident response services is recommended, as plugin-based malware scanners may be unreliable. Specific commands are not provided in the available resources. [1]

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Mitigation Strategies

Immediate mitigation steps include applying virtual patching (vPatching) provided by Patchstack, which offers automatic protection against exploitation even without an official fix. Users should also consider restricting Contributor-level user capabilities temporarily, monitor for suspicious activity, and seek professional incident response or server-side malware scanning if compromise is suspected. Timely updates and security measures are important to prevent automated attacks targeting this vulnerability. [1]

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