CVE-2026-6826

creationtimestamp| type| source ---|---|--- 2026-08-24 06:44:22+00:00| seen| https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/scanner/http/concretecmsfileusagedisclosure.rb 2026-09-08 06:47:30+00:00| seen|...

Concrete CMS is vulnerable to unauthenticated file usage disclosure

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,...

GHSA-4G7Q-44QP-CC5C Concrete CMS is vulnerable to unauthenticated file usage disclosure

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,...

CVE-2026-6826 Concrete 9.5.0 and below has file usage disclosure via missing permission check in Usage controller

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,...

EUVD-2026-31344

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,...

CVE-2026-6826 Concrete 9.5.0 and below has file usage disclosure via missing permission check in Usage controller

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,...

CVE-2026-6826

Concrete CMS 9.5.0 and below is vulnerable to unauthenticated file usage disclosure due to a missing permission check in the usage controller. An unauthenticated visitor can access /ccm/system/dialogs/file/usage/{fID} with any file ID and obtain a list of every page referencing that file, includi...

CVE-2026-6826 Concrete 9.5.0 and below has file usage disclosure via missing permission check in Usage controller

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,...

CVE-2026-6826: Exposure of Sensitive Information to an Unauthorized Actor

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,...

PT-2026-42540

Name of the Vulnerable Software and Affected Versions Concrete CMS versions 9.5.0 and earlier Description An issue exists where a missing permission check in the usage controller allows unauthenticated visitors to disclose file usage information. By requesting the endpoint...

Concrete CMS Unauthenticated File Usage Disclosure

Concrete CMS formerly concrete5 9.x before 9.5.1 exposes the file usage dialog controller at /ccm/system/dialogs/file/usage/ without a view permission check CVE-2026-6826. An unauthenticated attacker can enumerate the numeric file ID space and, for every file registered in the file manager, learn...