CVE-2025-67823
High
Description
A vulnerability in the Multimedia Email component of Mitel MiContact Center Business through 10.2.0.10 and Mitel CX through 1.1.0.1 could allow an unauthenticated attacker to conduct a Cross-Site Scripting (XSS) attack due to insufficient input validation. A successful exploit requires user interaction where the email channel is enabled. This could allow an attacker to execute arbitrary scripts in the victim's browser or desktop client application.
SeverityHigh
CVSS8.2
Exploit probability—
Product
Mitel Micontact Center Business
PublishedJan 15, 2026
First seenJan 15, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- mitel micontact_center_business10.2.0.11 or later
- mitel cx2.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mitel micontact_center_business | v < 10.2.0.11 | 10.2.0.11 |
| mitel cx | v < 2.0 | 2.0 |
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