CVE-2025-67823Network attack vector

Stored XSS via insufficient email input validation

Published Jan 15, 2026 · Updated Jan 15, 2026

Stored XSS in Mitel MiContact Center Business through 10.2.0.10 and Mitel CX through 1.1.0.1 allows remote attackers to execute arbitrary scripts. The Ignite Mail component accepts and stores attacker-controlled email content without sufficient validation, then renders it in a victim's browser or desktop client. Only multimedia-licensed deployments using email in Web Ignite, Desktop Ignite, or Contact Center Client are exposed, and a victim must interact with the malicious email; successful execution can expose sensitive information.

CVSS severity8.2
High
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Mitel MiContact Center Business through 10.2.0.10 and Mitel CX through 1.1.0.1 allows remote attackers to execute arbitrary scripts. The Ignite Mail component accepts and stores attacker-controlled email content without sufficient validation, then renders it in a victim's browser or desktop client. Only multimedia-licensed deployments using email in Web Ignite, Desktop Ignite, or Contact Center Client are exposed, and a victim must interact with the malicious email; successful execution can expose sensitive information.

The record

CVE
CVE-2025-67823
Published
Jan 15, 2026
Updated
Jan 15, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.2CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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