CVE•Published 2026-05-13•Modified 2026-05-14•1 article on news•6 live references•NVD data
CVE-2026-21821
Vulnerability data via NVD (ingested)
CVSS v3.1
8.3
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
EPSS percentile
—
Weaknesses (CWE)
Description
The HCL BigFix SCM Reporting site contains an outdated and unsupported version of the jQuery 1.x library. Since jQuery 1.x has reached end-of-life and no longer receives security updates, it may expose the application to publicly known security weaknesses and increase the risk of client-side attacks such as Cross-Site Scripting (XSS) or manipulation through vulnerable third-party components.
Timeline
Published 2026-05-13
Modified 2026-05-14
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
More intel sources (5)
Shodan report
vuln:CVE-2026-21821Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-21821Censys host search filtered to this CVE id.
grep.app
CVE-2026-21821Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-21821GitHub code search for direct mentions.
Google dork
"CVE-2026-21821" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-21821 on GitHub.