Unauthenticated Content Publishing in The Events Calendar WordPress Plugin

Executive Summary

This vulnerability is a broken access control issue in The Events Calendar WordPress plugin versions 6.15.0 to 6.17.4.1. It allows users with roles like Contributor, who normally cannot publish content, to bypass editorial review and publish content directly through the plugin's REST API due to a failure to verify required capabilities before creating or updating content.

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Detection Guidance

Check the installed version of The Events Calendar plugin. If it is between 6.15.0 and 6.17.4.1, the system is vulnerable. Use WordPress admin panel or run a command like 'wp plugin list' in the WordPress directory to verify the version.

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Impact Analysis

If you use The Events Calendar plugin versions 6.15.0 to 6.17.4.1, an attacker with a Contributor role or similar could publish unauthorized content without going through the normal editorial review process. This could lead to the spread of misinformation, inappropriate content, or other disruptions on your WordPress site.

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Compliance Impact

This vulnerability allows unauthorized users to publish content directly, bypassing editorial review. This could lead to non-compliance with data protection regulations like GDPR or HIPAA if sensitive or regulated content is published without proper oversight or approval.

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Mitigation Strategies

Update The Events Calendar plugin to version 6.17.5 or later immediately. Disable the plugin temporarily if an update is not immediately available, or restrict user roles to prevent unauthorized publishing.

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