CVE-2026-67165Network attack vector

Authenticated script execution in victim browsers

Published Oct 13, 2026 · Updated Oct 13, 2026

XSS in HCL Connections 7.0 and 8.0 allows remote authenticated users to execute scripts in another user's browser. The retrieved CNA record does not identify the affected component, input, or faulty operation, and its referenced vendor bulletin was inaccessible. Exploitation requires victim interaction and exposes cookie-based authentication credentials to theft and account compromise.

CVSS severity5.4
Medium
EPSS probability0.15%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

XSS in HCL Connections 7.0 and 8.0 allows remote authenticated users to execute scripts in another user's browser. The retrieved CNA record does not identify the affected component, input, or faulty operation, and its referenced vendor bulletin was inaccessible. Exploitation requires victim interaction and exposes cookie-based authentication credentials to theft and account compromise.

The record

CVE
CVE-2026-67165
Published
Oct 13, 2026
Updated
Oct 13, 2026
Vendor
HCL Software
Product
HCL Connections
Classifications
CWE-79, T1539
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=7.0, 8.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

HCL Software · HCL Connectionsversion=7.0, 8.0

Published CVSS scores

5.4HCLCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/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')
T1539Steal Web Session Cookie

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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