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GHSA-vpgr-cwfx-pwfw

Concrete CMS is vulnerable to unauthenticated page metadata disclosure

Source: GitHub Advisory Database (reviewed) Moderate CVE-2026-8240

Packages

EcosystemPackageAffectedFixed in
Packagist concrete5/concrete5 < 9.5.1 9.5.1

Details

As written in the advisory (Markdown source, shown as plain text).

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.

References

External links from the advisory. They lead to third-party sites.