Is CVE-2018-9104 actively exploited?

No active exploitation of CVE-2018-9104 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2018-9104 be exploited remotely?

Yes. CVE-2018-9104 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2018-9104?

CVE-2018-9104 has a CVSS score of 6.1 (MEDIUM).

HOME VULNERABILITIESCVE-2018-9104

MEDIUM

CVE-2018-9104

CWE-79Published: April 25, 2018· Updated: Jun 17, 2026

6.1

CVSS v3.1

Official Description

A vulnerability in the conferencing component of Mitel MiVoice Connect, versions R1707-PREM SP1 (21.84.5535.0) and earlier, and Mitel ST 14.2, versions GA27 (19.49.5200.0) and earlier, could allow an unauthenticated attacker to conduct a reflected cross-site scripting (XSS) attack due to insufficient validation for the api.php page. A successful exploit could allow an attacker to execute arbitrary scripts.

NVD Source

Technical Analysis

CVE-2018-9104 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.