Vulnerability Description
Concrete CMS 9.0.0 through 9.5.2 is vulnerable to Insecure direct object reference (IDOR) in the Express saved search preset delete and edit dialogs . An authenticated user holding only view permission on a single Express entity could therefore permanently delete, with no undo, or rename saved search presets owned by Express entities for which they had no permission, and a renamed preset name was displayed back to users of the targeted entity, enabling defacement or social engineering. The Concrete CMS security team gave this vulnerability a CVSS v4.0 score of 2.1 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N. Thanks Yalguun Tumenkhuu ( fg0x0 ) for reporting.
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-18423?
CVE-2026-18423 is a documented vulnerability. Concrete CMS 9.0.0 through 9.5.2 is vulnerable to Insecure direct object reference (IDOR) in the Express saved search preset delete and edit dialogs . An authenticated user holding only view permissi...
How severe is CVE-2026-18423?
CVSS scoring is not yet available for CVE-2026-18423. Check NVD for updates.
Is there a patch for CVE-2026-18423?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.