CVE-2026-21821Network attack vector

Client-side attacks via unmaintained jQuery

Published May 13, 2026 · Updated May 13, 2026

Use of unmaintained jQuery in HCL BigFix SCM Reporting 11.0.5 allows remote attackers to target users with client-side attacks. SCM Reporting site wizards and web-report sections load the end-of-life 1.x library instead of a maintained dependency. Exploitation requires user interaction with affected content; HCL identifies cross-site scripting and third-party component manipulation as consequences but does not name a single underlying jQuery flaw.

CVSS severity8.3
High
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Use of unmaintained jQuery in HCL BigFix SCM Reporting 11.0.5 allows remote attackers to target users with client-side attacks. SCM Reporting site wizards and web-report sections load the end-of-life 1.x library instead of a maintained dependency. Exploitation requires user interaction with affected content; HCL identifies cross-site scripting and third-party component manipulation as consequences but does not name a single underlying jQuery flaw.

The record

CVE
CVE-2026-21821
Published
May 13, 2026
Updated
May 13, 2026
Vendor
HCLSoftware
Product
HCL BigFix SCM Reporting
Classifications
CWE-1104
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 13, 2026CVE publishedPublication date reported by the CVE source.
  2. May 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=11.0.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

HCLSoftware · HCL BigFix SCM Reportingversion=11.0.5

Published CVSS scores

8.3HCL SoftwareCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/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-1104Use of Unmaintained Third Party Components

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo