GHSA-4g7q-44qp-cc5cMedium

Concrete CMS 9.5.0 and below  is vulnerable to unauthenticated file usage disclosure via missing...

Published
May 21, 2026
Last Modified
May 21, 2026

🔗 CVE IDs covered (1)

📋 Description

Concrete CMS 9.5.0 and below  is vulnerable to unauthenticated file usage disclosure via missing permission check in the usage controller.  Any unauthenticated visitor can request /ccm/system/dialogs/file/usage/{fID} with any file ID and receive a list of every page that references that file, including page IDs, handles, and full URLs. This includes pages that are otherwise restricted by permissions.The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 6.9 with vector CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N. Thanks Eldudareeno for reporting.

🔗 References (3)