CVE•Published 2026-05-15•Modified 2026-05-18•1 article on news•6 live references•NVD data
CVE-2021-47964
Vulnerability data via NVD (ingested)
CVSS v3.1
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
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Weaknesses (CWE)
Description
Schlix CMS 2.2.6-6 contains a remote code execution vulnerability that allows authenticated attackers to execute arbitrary PHP code by uploading malicious extension packages through the block manager. Attackers can upload a crafted ZIP file containing PHP code in the packageinfo.inc file and trigger execution by accessing the About tab of the installed extension.
Timeline
Published 2026-05-15
Modified 2026-05-18
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). Live host counts are a Premium feature.
More intel sources (5)
Shodan report
vuln:CVE-2021-47964Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2021-47964Censys host search filtered to this CVE id.
grep.app
CVE-2021-47964Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2021-47964GitHub code search for direct mentions.
Google dork
"CVE-2021-47964" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2021-47964 on GitHub.