CashDro 3 EUVD-2026-28591

Apply the vendor-released security patch available from CashDro according to the INCIBE-CERT advisory at https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-cashdro-3. The advisory provides specific patch versions and installation procedures for CashDro 3 systems. Until patching is completed, implement network-level access controls to restrict web administration panel access to trusted management networks only, blocking internet-facing exposure entirely. Deploy web application firewall rules to detect and block API requests containing modified permission fields, though this provides limited protection against determined attackers who can bypass client-side controls. Audit all user accounts with existing access to the administration panel, removing unnecessary accounts and enforcing principle of least privilege for remaining users. Review system logs for suspicious privilege escalation attempts, focusing on accounts that accessed administrative functions inconsistent with their assigned roles. Monitor the ITResIT Labs technical analysis at https://labs.itresit.es/2026/05/07/cashdro-vulnerabilities-from-pentest-to-stealing-money/ for additional exploitation indicators and detection signatures. Note that access restrictions and monitoring provide defense-in-depth but cannot eliminate the core vulnerability requiring backend authorization enforcement.