High · published February 3, 2026
🚨 An authentication bypass lets suspended users back in through Moodle's LTI door without a key! 🔥 Think of it as a hotel that accidentally forgot to deactivate a guest's keycard after they checked out — they can still stroll into their old room and access everything inside! This could lead to unauthorized access, allowing users who should be locked out to sneak in and potentially disclose sensitive information or perform actions they aren't allowed to. It's like giving an ex-employee back their office privileges — absolutely disastrous!
Think of it as a hotel that accidentally forgot to deactivate a guest's keycard after they checked out — they can still stroll into their old room and access everything inside! This vulnerability arises because the LTI authentication handlers neglect to check the suspension status of users, meaning that suspended individuals can authenticate successfully and gain unauthorized access to the system.
This could lead to unauthorized access, allowing users who should be locked out to sneak in and potentially disclose sensitive information or perform actions they aren't allowed to. It's like giving an ex-employee back their office privileges — absolutely disastrous! To remediate, patch Moodle to the latest version immediately, which addresses this flaw. Additionally, review your LTI authentication settings to ensure proper user status checks are implemented. You've got this! By taking these steps, you'll reinforce your defenses and keep your learning environment secure! 🛡️