CVE•Published 2026-05-16•Modified 2026-05-18•1 article on news•6 live references•NVD data
CVE-2021-47976
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
TextPattern CMS 4.9.0-dev contains a remote code execution vulnerability that allows authenticated attackers to upload arbitrary PHP files by exploiting the plugin upload functionality. Attackers can authenticate, retrieve a CSRF token from the plugin event page, and upload malicious PHP files to the textpattern/tmp/ directory for code execution.
Timeline
Published 2026-05-16
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).
More intel sources (5)
Shodan report
vuln:CVE-2021-47976Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2021-47976Censys host search filtered to this CVE id.
grep.app
CVE-2021-47976Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2021-47976GitHub code search for direct mentions.
Google dork
"CVE-2021-47976" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2021-47976 on GitHub.