CVE-2025-67823 Cross-site scripting in n/a
An unauthenticated attacker can execute arbitrary scripts in a victim's browser or client via XSS in the Multimedia Email component, requiring the email channel to be enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-67823?
CVE-2025-67823 is a high-severity cross-site scripting vulnerability in n/a, published on 15 Jan 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2025-67823?
It affects 2 products.
Products include Mitel Cx, Mitel Micontact Center Business.
How do I fix CVE-2025-67823?
No fix has been published for CVE-2025-67823 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-67823 being exploited?
There is no known exploitation of CVE-2025-67823 in the wild and no public exploit code.
Sources
Also known as GHSA-7567-mgp8-r89c.