CVE-2026-67103Network attack vector

Account takeover via unsanitized script injection

Published Sep 18, 2026 · Updated Sep 18, 2026

Cross-site scripting in HCL BigFix Service Management V23 allows remote authenticated users to hijack accounts through crafted input. HCL has not disclosed the affected input field or rendering path; it states only that unsanitized malicious scripts execute in a victim's browser. Low-privileged access and victim interaction are required, after which the script can hijack the session or perform unauthorized actions as the victim.

CVSS severity7.6
High
EPSS probability0.20%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in HCL BigFix Service Management V23 allows remote authenticated users to hijack accounts through crafted input. HCL has not disclosed the affected input field or rendering path; it states only that unsanitized malicious scripts execute in a victim's browser. Low-privileged access and victim interaction are required, after which the script can hijack the session or perform unauthorized actions as the victim.

The record

CVE
CVE-2026-67103
Published
Sep 18, 2026
Updated
Sep 18, 2026
Vendor
HCL Software
Product
HCL BigFix Service Management
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=V23

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

HCL Software · HCL BigFix Service Managementversion=V23

Published CVSS scores

7.6HCL SoftwareCVSS:3.1/AV:N/AC:L/PR:L/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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
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.

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Technologies

Your stack

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Your stack

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