CVE-2025-66391

HIGH CVSS 3.1: 8.8 EPSS 0.38%
Updated Jun 17, 2026
Citrix
Parameter Value
CVSS 8.8 (HIGH)
Type CWE-284 (Improper Access Control)
Vendor Citrix
Public PoC Yes

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1