Vulnerability Description
Concrete CMS 9.5.0 and below is vulnerable to unauthenticated page metadata disclosure across every page with a configured summary template, revealing the existence of private, draft, and restricted pages while leaking title, path, description, and author information. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 6.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N. Thanks Winston Crooker for reporting.
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-8240?
CVE-2026-8240 is a documented vulnerability. Concrete CMS 9.5.0 and below is vulnerable to unauthenticated page metadata disclosure across every page with a configured summary template, revealing the existence of private, draft, and restricted p...
How severe is CVE-2026-8240?
CVSS scoring is not yet available for CVE-2026-8240. Check NVD for updates.
Is there a patch for CVE-2026-8240?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.