CVE-2025-27828

Description

A vulnerability in the legacy chat component of Mitel MiContact Center Business through 10.0.0.4, 10.1.0.0 through 10.1.0.5, and 10.2.0.0 through 10.2.0.4 could allow an unauthenticated attacker to conduct a reflected cross-site scripting (XSS) attack due to insufficient input validation. A successful exploit requires user interaction and could allow an attacker to execute arbitrary scripts with a limited impact on the confidentiality and the integrity.

Category

7.1
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.04%
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.mitel.com/support/security-advisories
https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-misa-2025-0003

Frequently Asked Questions

What is the severity of CVE-2025-27828?
CVE-2025-27828 has been scored as a high severity vulnerability.
How to fix CVE-2025-27828?
To fix CVE-2025-27828, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-27828 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-27828 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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