CVE-2018-5782

CRITICAL

Mitel Connect ONSITE <R1711-PREM - RCE

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2018-5782. PoCs published by twosevenzero.

AI-analyzed exploit summary This Ruby script exploits CVE-2018-5782 in ShoreTel/Mitel Connect ONSITE ST14.2 by chaining vulnerabilities to achieve remote code execution. It leverages parameter injection in PHP scripts to execute arbitrary commands via base64-encoded payloads.

Description

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 inject PHP code using specially crafted requests to the vsethost.php page. Successful exploit could allow an attacker to execute arbitrary PHP code within the context of the application.

Exploits (1)

exploitdb WORKING POC
by twosevenzero · textwebappsphp
https://www.exploit-db.com/exploits/46174

This Ruby script exploits CVE-2018-5782 in ShoreTel/Mitel Connect ONSITE ST14.2 by chaining vulnerabilities to achieve remote code execution. It leverages parameter injection in PHP scripts to execute arbitrary commands via base64-encoded payloads.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: ShoreTel/Mitel Connect ONSITE ST14.2 (19.49.5200.0)
No auth needed
Prerequisites: Network access to the vulnerable ShoreTel/Mitel Connect ONSITE instance
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/46174/

Scores

CVSS v3 9.8
EPSS 0.1971
EPSS Percentile 97.1%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-94
Status published
Products (2)
mitel/connect_onsite < r1711-prem
mitel/st14.2 < ga28
Published Mar 14, 2018
Tracked Since Feb 18, 2026