Reflected Cross-Site Scripting Vulnerability in Moodle by Moodle

CVE-2025-3643

What is CVE-2025-3643?

A security flaw in Moodle has been identified that exposes the platform to a reflected Cross-site Scripting (XSS) attack. The vulnerability arises from insufficient sanitization of the return URL in the policy tool, allowing attackers to inject malicious scripts. This flaw can enable cybercriminals to bypass security measures and execute harmful scripts in the context of a user's browser, posing significant risks to user data and privacy. It is crucial for administrators to apply the necessary patches and updates to safeguard their Moodle installations and protect against potential exploits.

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