Race Condition in Booking Calendar Plugin

Executive Summary

This is a race condition vulnerability in the WPdevelop Booking Calendar plugin. It allows attackers to exploit timing gaps in concurrent execution to bypass security checks, such as reusing discount codes. The issue occurs due to improper synchronization when multiple users access shared resources simultaneously.

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Detection Guidance

Detecting this race condition vulnerability requires monitoring for unusual concurrent access patterns or security bypass attempts in the Booking Calendar plugin. Check for repeated discount code usage, concurrent booking attempts, or unexpected changes in plugin behavior. Review server logs for rapid successive requests to the same endpoints.

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Impact Analysis

Attackers could exploit this to bypass security measures like discount codes without authentication. However, the impact is limited due to its low severity (CVSS 3.7). It is unlikely to be widely exploited but may affect plugin functionality or user trust.

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Compliance Impact

This vulnerability does not directly affect compliance with GDPR or HIPAA as it is a low-severity race condition issue with limited impact. It may indirectly pose minor risks if exploited to bypass security checks, but no evidence suggests significant compliance violations.

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Mitigation Strategies

Update the Booking Calendar plugin to the latest version if available. If no patch exists, contact your hosting provider or developer for assistance. Monitor for unusual discount code usage or unauthorized bookings as potential signs of exploitation.

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