CVE•Published 2026-04-23•Modified 2026-04-24•1 article on news•6 live references•NVD data
CVE-2026-40472
Vulnerability data via NVD (ingested)
CVSS v3.1
9.9
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
EPSS percentile
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Weaknesses (CWE)
Description
In hackage-server, user-controlled metadata from .cabal files are rendered into HTML href attributes without proper sanitization, enabling stored Cross-Site Scripting (XSS) attacks.
Timeline
Published 2026-04-23
Modified 2026-04-24
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-2026-40472Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-40472Censys host search filtered to this CVE id.
grep.app
CVE-2026-40472Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-40472GitHub code search for direct mentions.
Google dork
"CVE-2026-40472" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-40472 on GitHub.