CVE-2023-37523Network attack vector

Browser script execution via insecure HTML tags

Published Jan 16, 2024 · Updated Jun 3, 2025

Cross-site scripting in HCL BigFix OSD Bare Metal Server WebUI 311.19 and earlier allows remote attackers to execute scripts in browsers. The WebUI emits missing or insecure HTML tags that permit attacker-controlled script content to reach the browser, but HCL has not identified the affected tag or input path. Exploitation requires network reachability to the WebUI and a browser that renders the affected response; resulting script execution is limited to the browser context.

CVSS severity9.8
Critical
EPSS probability0.39%
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 BigFix OSD Bare Metal Server WebUI 311.19 and earlier allows remote attackers to execute scripts in browsers. The WebUI emits missing or insecure HTML tags that permit attacker-controlled script content to reach the browser, but HCL has not identified the affected tag or input path. Exploitation requires network reachability to the WebUI and a browser that renders the affected response; resulting script execution is limited to the browser context.

The record

CVE
CVE-2023-37523
Published
Jan 16, 2024
Updated
Jun 3, 2025
Vendor
HCL Technologies
Product
HCL BigFix Bare Metal OS Deployment Server WebUI
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 3, 2025Record 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=-

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

HCL Technologies · HCL BigFix Bare Metal OS Deployment Server WebUIversion=-
HCL Software · HCL BigFix OSD Bare Metal Server WebUIversion=<= 311.19

Published CVSS scores

5.6HCL SoftwareCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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')
T1059.007Command and Scripting Interpreter: JavaScript/JScript

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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