Vulnerability Report

CVE-2025-66391

Title: Citrix Cloud Read-Only Account Unauthorized Action

Unauthorized Action

Proof Of Concept

PoC Available for CVE-2025-66391

CWE Category CWE-284
Published Date Jun 17, 2026
Modified Date Jun 17, 2026
Exploit Status Available
Score 8.8 CVSS v3.1
Exploit Probability (EPSS)
0.38%

Vulnerability Summary

CVE-2025-66391: 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.

Impacted Vendors

Analysis in Progress...

Reference Links

https://citrix.cloud.com/ https://github.com/mandeepsohal/CVE-2025-66391/blob/main/Exploit.md https://github.com/mandeepsohal/CVE-2025-66391/blob/main/Exploit.md
CVSS v3.1
Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity HIGH
8.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2025-66391 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/mandeepsohal/CVE-2025-66391
View Code
MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.