~ / search / GHSA-58c8-vvqw-cm7m

GHSA-58c8-vvqw-cm7m

Concrete CMS is vulnerable to IDOR combined with a missing authentication gate

Source: GitHub Advisory Database (reviewed) Moderate CVE-2026-8236

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 IDOR combined with a missing authentication gate. The endpoint /ccm/system/dialogs/file/usage/{fID} accepts an integer file ID in the URL and returns internal site structure data (page IDs, versions, URL paths) to anyone who sends a GET request.

References

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