What’s Vulnerable › Vulnerabilities

CVE-2025-27828

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-06-24 · updated 2026-06-17
• Weakness: CWE-79

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.

References

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

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