Missing Authorization in Vertim Schedula Allows Unauthorized Access

Compliance Impact

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Executive Summary

CVE-2025-67970 is a Broken Access Control vulnerability in the WordPress Schedula Plugin versions up to and including 1.0.

The issue is caused by missing authorization, authentication, or nonce token checks within certain plugin functions.

This allows unauthenticated users to perform actions that should be restricted to higher privileged users.

It is classified under the OWASP Top 10 category A1: Broken Access Control and has a CVSS score of 5.9, indicating moderate severity.

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Impact Analysis

This vulnerability allows unauthenticated users to bypass access controls and perform privileged actions within the Schedula plugin.

As a result, attackers could manipulate appointment bookings or other sensitive functions without proper authorization.

This can lead to unauthorized data access, modification, or disruption of service, potentially compromising the integrity and availability of the affected system.

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Detection Guidance

[{'type': 'paragraph', 'content': 'This vulnerability involves missing authorization checks in the WordPress Schedula Plugin up to version 1.0, allowing unauthenticated users to perform privileged actions.'}, {'type': 'paragraph', 'content': "Detection can focus on monitoring for unauthorized access attempts or suspicious activity targeting the plugin's endpoints or functions that require higher privileges."}, {'type': 'paragraph', 'content': 'Patchstack has issued mitigation rules to block attacks targeting this flaw, which may include detection signatures or rules for web application firewalls.'}, {'type': 'paragraph', 'content': 'However, no specific commands or detection scripts are provided in the available resources.'}] [1]

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Mitigation Strategies

The primary immediate step is to update the WordPress Schedula Plugin to version 1.1 or later, where the vulnerability has been patched.

Until the update can be applied, users can implement Patchstack mitigation rules which block attacks targeting this vulnerability.

Additionally, enabling automatic mitigation and auto-update features provided by Patchstack can enhance protection against exploitation.

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