HOMEVULNERABILITIESCVE-2018-5782
CRITICALPOC

CVE-2018-5782

CWE-94Published: March 14, 2018· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2018-5782 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

A proof-of-concept (PoC) exploit exists for CVE-2018-5782. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

mitel2 product(s)
connect onsitest14.2
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://github.com/twosevenzero/shoretel-mitel-rce
ADVISORYhttps://www.exploit-db.com/exploits/46174/
ADVISORYhttps://www.mitel.com/support/security-advisories/mitel-product-security-advisory-18-0004
ADVISORYhttps://github.com/twosevenzero/shoretel-mitel-rce
ADVISORYhttps://www.exploit-db.com/exploits/46174/
ADVISORYhttps://www.mitel.com/support/security-advisories/mitel-product-security-advisory-18-0004

All References (6)

→
https://github.com/twosevenzero/shoretel-mitel-rceProduct · Third Party Advisory
→
https://www.exploit-db.com/exploits/46174/Exploit · Third Party Advisory · VDB Entry
→
https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-18-0004Vendor Advisory
→
https://github.com/twosevenzero/shoretel-mitel-rceProduct · Third Party Advisory
→
https://www.exploit-db.com/exploits/46174/Exploit · Third Party Advisory · VDB Entry
→
https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-18-0004Vendor Advisory

Quick Facts

CVE IDCVE-2018-5782
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-94
CISA KEVNo
ExploitPOC
Affected1 vendor(s)
PublishedMar 14, 2018

Related CVEs (CWE-94)

CVE-2015-1497
10.0
CVE-2007-6731
10.0
CVE-2023-37466
10.0
CVE-2014-7192
10.0
CVE-2013-6810
10.0
CVE-2013-1488
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-5782 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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