CVE•Published 2026-05-21•Modified 2026-05-26•1 article on news•5 live references•NVD data
CVE-2026-8414Concretecms · Concrete_cms
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
—
Weaknesses (CWE)
Description
Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery (CSRF) at concrete/controllers/dialog/event/duplicate. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Yonatan Drori (Tenzai) for reporting.
Timeline
Published 2026-05-21
Modified 2026-05-26
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-2026-8414Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Concretecms Concrete Cms"All exposed Concretecms Concrete Cms instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Concrete Cms"HTTP body or banner mentions "Concrete Cms" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-8414Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-8414Censys host search filtered to this CVE id.
grep.app
CVE-2026-8414Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-8414GitHub code search for direct mentions.
Google dork
"CVE-2026-8414" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (6)
CVE-2026-84146 repos
Ostorlab/KEVunknown
Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.
coproduct-opensource/nucleusRust
Enforced permissions for AI agents - policy + enforcement in one stack
nkapila6/ai-deepstackunknown
papers & blogs on agentic ai, ai system design, deep learning framework internals
andrewmichaelsmith/fluxPython
HTTP honeypot on autopilot
rxerium/CISA-KEVPython
An automated repo to track Nuclei template scanning capabilities against the CISA KEV.
mcp-shark/MCPSecPython