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CVE-2018-5779

CRITICAL

A vulnerability in the conferencing component of Mitel Connect ONSITE, versions R1711-PREM and earlier, and Mitel ST 14.2, release GA28 and earlier, could allow an unauthenticated attacker to copy a malicious script into a newly generated PHP file and then execute the generated file using specially crafted requests. Successful exploit could allow an attacker to execute arbitrary code within the context of the application.

Published: Mar 14, 2018 Modified: Jun 17, 2026
CWE-94

CVSS Metrics

CVSSv3
Attack Vector: NETWORK Attack Complexity: LOW Privileges Required: NONE User Interaction: NONE Scope: UNCHANGED Confidentiality Impact: HIGH Integrity Impact: HIGH Availability Impact: HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products (2)

Vendor Product Version
mitel connect_onsite *
mitel st14.2 *

GitHub Security Advisory GHSA-2ggv-vfg5-vf2c

A vulnerability in the conferencing component of Mitel Connect ONSITE, versions R1711-PREM and...

Risk Scores

CVSS Score 9.8 / 10
EPSS Score 2.77%

Top 15% most likely to be exploited

Threat Score 40 / 100

Data Sources

NVD EPSS GitHub