CVE-2023-28017Network attack vector

Account compromise via undisclosed cross-site scripting

Published Dec 7, 2023 · Updated Dec 2, 2024

Cross-site scripting in HCL Connections 6.0, 6.5, 7.0, and 8.0 allows remote authenticated users to execute script in a user's browser. HCL has not disclosed the affected endpoint or the improper handling that causes attacker-controlled content to execute. A user must visit the vulnerable URL; the resulting script can steal cookie-based credentials and compromise the user's account.

CVSS severity5.4
Medium
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in HCL Connections 6.0, 6.5, 7.0, and 8.0 allows remote authenticated users to execute script in a user's browser. HCL has not disclosed the affected endpoint or the improper handling that causes attacker-controlled content to execute. A user must visit the vulnerable URL; the resulting script can steal cookie-based credentials and compromise the user's account.

The record

CVE
CVE-2023-28017
Published
Dec 7, 2023
Updated
Dec 2, 2024
Vendor
HCL Software
Product
HCL Connections
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Dec 2, 2024Record 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=6.0, 6.5, 7.0, 8.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

HCL Software · HCL Connectionsversion=6.0, 6.5, 7.0, 8.0

Published CVSS scores

5.4HCL SoftwareCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.4NIST NVDCVSS: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.

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
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.

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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