High · published February 7, 2026
⚡ A sneaky IDOR vulnerability in WeKan lets attackers tamper with checklist IDs across different boards — like someone being able to swap your restaurant reservations just by changing a few numbers! Think of it as a restaurant where anyone can change the name on your reservation by just guessing the right number. Instead of being seated at your table, you might end up at a completely different one, all because the system didn’t check if you were allowed to change that reservation. If left unpatched, an attacker could exploit this vulnerability to access or modify checklists they shouldn't have permissions for, leading to unauthorized changes and potential data loss. This could disrupt teams and trust, as sensitive information might fall into the wrong hands.
Think of it as a restaurant where anyone can change the name on your reservation by just guessing the right number. Instead of being seated at your table, you might end up at a completely different one, all because the system didn’t check if you were allowed to change that reservation. This insecure direct object reference (IDOR) vulnerability in WeKan allows attackers to manipulate identifiers for checklists without proper verification of ownership between cardId and boardId, enabling cross-board tampering.
If left unpatched, an attacker could exploit this vulnerability to access or modify checklists they shouldn't have permissions for, leading to unauthorized changes and potential data loss. This could disrupt teams and trust, as sensitive information might fall into the wrong hands. To secure your application, update WeKan to version 8.19 or later immediately. Review your checklist creation and access controls to ensure proper validation between identifiers. Regularly audit your code to catch these sneaky issues early! You've got this! With these steps, you're on your way to solidifying your security stance! 🛡️