Cross-Site Scripting Vulnerability in Mitel MiContact Center and CX Products
CVE-2025-67823

8.2HIGH

Key Information:

Vendor

Mitel
Status
Mitel MiContact Center and CX
Vendor
CVE Published:
15 January 2026

What is CVE-2025-67823?

A security flaw in the Multimedia Email component of Mitel MiContact Center Business and Mitel CX allows unauthenticated attackers to exploit insufficient input validation. This vulnerability can lead to Cross-Site Scripting (XSS) attacks when the email channel is enabled. By enticing a user to interact with a malicious payload, an attacker may execute arbitrary scripts within the user's browser or desktop client application, jeopardizing sensitive information and account integrity.

References

https://www.mitel.com/support/security-advisories
https://www.mitel.com/support/security-advisories/mitel-p...

CVSS V3.1

Score:
8.2
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.