CVE-2023-37520Network attack vector

Data exfiltration via stored Gather Status XSS

Published Dec 21, 2023 · Updated Aug 2, 2024

Stored XSS in HCL BigFix Platform 9.5.x, 10.0.x, and 11.0.0 allows remote attackers to exfiltrate data through Gather Status Report. The relay-served report renders stored attacker-supplied content, but HCL has not identified the input field or missing output-encoding operation. The report exists on Windows, not Linux; no account is required to plant content, but a user must open it in a browser.

CVSS severity6.1
Medium
EPSS probability0.25%
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 HCL BigFix Platform 9.5.x, 10.0.x, and 11.0.0 allows remote attackers to exfiltrate data through Gather Status Report. The relay-served report renders stored attacker-supplied content, but HCL has not identified the input field or missing output-encoding operation. The report exists on Windows, not Linux; no account is required to plant content, but a user must open it in a browser.

The record

CVE
CVE-2023-37520
Published
Dec 21, 2023
Updated
Aug 2, 2024
Vendor
HCLSoftware
Product
HCL BigFix Platform
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 21, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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=9.5.x, 10.0.x, 11.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

HCLSoftware · HCL BigFix Platformversion=9.5.x, 10.0.x, 11.0.0

Published CVSS scores

7.7HCL SoftwareCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/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
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

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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