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CVE Record

CVE-2018-9104: A vulnerability in the conferencing component of Mitel MiVoice Connect, versions R1707-PREM SP1 (21.84.5535...

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.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This issue affects older Mitel voice/conferencing systems and could let an unauthenticated attacker trigger malicious script execution through the conferencing api.php page. Business risk is mainly user/session compromise and phishing within a trusted Mitel web interface, not direct server takeover based on the provided sources.

Executive priority

Treat this as a moderate-priority exposure review for legacy Mitel conferencing systems. Prioritize internet-facing or broadly accessible deployments, but avoid emergency escalation unless local exposure or vendor guidance indicates higher business impact.

Technical view

CVE-2018-9104 is a reflected XSS in the conferencing component of Mitel MiVoice Connect R1707-PREM SP1 21.84.5535.0 and earlier, and Mitel ST 14.2 GA27 19.49.5200.0 and earlier. The source attributes it to insufficient validation on api.php and says successful exploitation could execute arbitrary scripts.

Likely exposure

Exposure is likely limited to organizations still running the named Mitel versions, especially where the conferencing web component or api.php is reachable by users or externally. The structured affected-product fields are incomplete, so confirm against installed Mitel versions and the vendor advisory.

Exploitation context

The bundle does not show CISA KEV listing or cited evidence of active exploitation. The described attack is reflected XSS, which usually depends on a victim interacting with attacker-controlled content or links, but the source does not provide exploit prevalence or detailed prerequisites.

Researcher notes

The public bundle lacks CVSS, CWE, patch details, and exploit-status evidence. The description names affected products and versions, while the structured affected array is n/a, so product/version validation should rely on the CVE description and Mitel references.

Mitigation direction

  • Review Mitel advisory 18-0003 and bulletin 18-0003-001 for vendor remediation guidance.
  • Identify and upgrade or patch affected Mitel deployments per Mitel-supported instructions.
  • Limit external access to the conferencing web component where business requirements allow.
  • Apply normal web filtering and user-awareness controls for suspicious Mitel-related links.
  • Monitor Mitel web access logs for unusual api.php requests.

Validation and detection

  • Inventory Mitel MiVoice Connect and Mitel ST versions in production and remote sites.
  • Confirm whether conferencing components expose api.php to users or the internet.
  • Compare installed versions with R1707-PREM SP1 21.84.5535.0 and GA27 19.49.5200.0 thresholds.
  • Verify vendor remediation status through change records or system version reporting.
  • Check vulnerability scanner findings against the exact Mitel product and version.
Prepared
Confidence
medium
Sources
4

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

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CVE-2018-9104 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.