CVE-2025-66391

High severity, CVSS 8.8. EPSS: 0.4% chance of exploitation in the next 30 days.

In Citrix Cloud through 2025-11-10, an account with read-only access can trigger the beginning of a workflow for write operations, e.g., the system will send a one-time password to an attacker-controlled email address when the attacker attempts to reset the password of a user account.

Published 2026-06-17. Last modified 2026-10-05.