CVE-2025-13542: Privilege Escalation in DesignThemes LMS

The impact of this vulnerability is severe. An attacker exploiting CVE-2025-13542 can gain complete control over a WordPress site running the vulnerable DesignThemes LMS plugin. This includes the ability to modify content, install malicious plugins, steal sensitive data (user credentials, financial information), and potentially pivot to other systems on the network. The lack of authentication required for exploitation significantly broadens the attack surface, making it accessible to a wide range of threat actors. This vulnerability shares similarities with other WordPress privilege escalation flaws where improper role assignment during registration is exploited.

1. Reserved2025-11-22
2. Published2025-12-02
3. Modified2026-04-08
4. EPSS updated2026-03-23

The primary mitigation for CVE-2025-13542 is to immediately upgrade the DesignThemes LMS plugin to version 1.0.5 or later. If upgrading is not immediately feasible due to compatibility issues or testing requirements, consider implementing temporary workarounds. While a direct WAF rule to prevent administrator role assignment during registration is complex, restricting the allowed roles in the WordPress user registration settings (if possible) can offer limited protection. Regularly review user accounts for suspicious activity and disable any newly created administrator accounts that are not recognized. After upgrading, verify the fix by attempting to register a new user with the 'administrator' role; the registration should fail.