cvedb.io
CVE-2026-56721
HIGH · CVSS 8.8
EPSS exploitation probability: 0%
Published 2026-08-11T16:17:33.563 · Last modified 2026-08-11T16:17:33.563

Summary

CamaleonCMS version 2.9.2 and earlier contains a privilege escalation vulnerability via insecure direct object reference (IDOR) that allows authenticated low-privileged attackers to overwrite any user's credentials by exploiting a parameter confusion flaw between the authorization filter and action body in the UsersController. Attackers can send a PATCH request to the updated_ajax endpoint setting params[:id] to their own user ID to pass the self-authorization check while simultaneously setting params[:user_id] to a victim's ID, causing the controller to load and mutate the victim's account, including overwriting administrator passwords to achieve full site takeover.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.