CVE•Published 2026-02-03•Modified 2026-04-14•1 article on news•6 live references•NVD data
CVE-2025-67478Mediawiki · Checkuser
Vulnerability data via NVD (ingested)
CVSS v3.1
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS percentile
—
Description
Vulnerability in Wikimedia Foundation CheckUser. This vulnerability is associated with program files includes/Mail/UserMailer.Php. This issue affects CheckUser: from * before 1.39.14, 1.43.4, 1.44.1.
Timeline
Published 2026-02-03
Modified 2026-04-14
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).
Shodan · vuln tag0 hosts
vuln:CVE-2025-67478Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Mediawiki Checkuser"All exposed Mediawiki Checkuser instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Checkuser"HTTP body or banner mentions "Checkuser" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2025-67478Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2025-67478Censys host search filtered to this CVE id.
grep.app
CVE-2025-67478Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2025-67478GitHub code search for direct mentions.
Google dork
"CVE-2025-67478" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2025-67478 on GitHub.