SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-5782

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…

EXPLOITCRITICAL 9.8EPSS 18.7%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 18.7%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

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.

CVSS 3.0
9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
18.72% probability · 97th percentile
Public exploits
1 in Exploit-DB · first 16 January 2019
CISA KEV
Not listed
Weakness
CWE-94
Affected
mitel/connect onsite · mitel/st14.2
Source
cve@mitre.org
EPSS trend
0%10%20%21 September 2026: 13.08%22 September 2026: 18.72%27 October 2026: 18.72%21 September 202627 October 2026

EPSS moved from 13.1% on 21 September 2026 to 18.7% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-46174source ↗ShoreTel / Mitel Connect ONSITE 19.49.5200.0 - Remote Code Executionphp · twosevenzerowebapps16 January 2019no

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.