CVE-2025-59577 in MasterStudy LMS Plugin
Summary
by MITRE • 09/22/2025
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in Stylemix MasterStudy LMS allows Leveraging Race Conditions. This issue affects MasterStudy LMS: from n/a through 3.6.20.
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Analysis
by VulDB Data Team • 09/22/2025
The CVE-2025-59577 vulnerability represents a critical race condition flaw within the Stylemix MasterStudy LMS platform that exploits concurrent execution patterns involving shared resources with inadequate synchronization mechanisms. This vulnerability specifically targets the MasterStudy LMS version range from an unspecified initial version through 3.6.20, creating a persistent security risk that affects organizations relying on this learning management system for educational content delivery and student management. The race condition manifests when multiple processes or threads attempt to access and modify shared resources simultaneously without proper coordination protocols, leading to unpredictable system behavior and potential security breaches.
This vulnerability falls under the CWE-362 category of concurrent execution using shared resource with improper synchronization, which is classified as a fundamental concurrency control issue in software development. The flaw enables attackers to leverage race conditions by carefully timing their malicious requests to exploit the temporal window where resource access is not properly synchronized. In the context of MasterStudy LMS, this could allow unauthorized users to manipulate shared data structures, potentially gaining elevated privileges or accessing restricted functionality through carefully orchestrated concurrent requests that exploit the timing gaps in the system's resource management protocols.
The operational impact of this vulnerability extends beyond simple data integrity concerns to encompass potential privilege escalation and unauthorized access to sensitive educational information. Attackers could exploit the race condition to manipulate user permissions, access student records, modify course content, or even compromise the entire LMS infrastructure by leveraging the improper synchronization mechanisms. The vulnerability's exploitation requires understanding of the underlying system architecture and careful timing of concurrent operations, making it particularly dangerous as it can be used to establish persistent access or execute unauthorized administrative functions within the LMS environment.
Organizations utilizing MasterStudy LMS versions through 3.6.20 should implement immediate mitigation strategies including applying the latest security patches from Stylemix, implementing additional access controls, and monitoring for suspicious concurrent access patterns. The recommended approach involves strengthening synchronization mechanisms throughout the application codebase, particularly in areas where user sessions, course data, or administrative functions are managed concurrently. Security teams should also consider implementing intrusion detection systems capable of identifying unusual concurrent access patterns that may indicate exploitation attempts, while ensuring proper logging and audit trails are maintained to track potential race condition exploitation activities. This vulnerability highlights the importance of proper concurrency control mechanisms in educational platforms where data integrity and user privacy are paramount concerns, aligning with ATT&CK technique T1078 for valid accounts and T1566 for credential harvesting through system manipulation.