Summary
CVE-2026-76596 is an improper access control vulnerability (CWE-284) in the Fabrik extension for Joomla. The list controller’s doempty action does not enforce any ACL checks, so an unauthenticated attacker can send a simple GET request to permanently delete all records from a targeted Fabrik list’s database table. The issue carries a CVSS v4.0 base score of 8.7 (High) and affects every release of Fabrik from 1.0.0 through 4.7.1.
Technical details
- Root cause: The
doemptyendpoint in Fabrik’s list controller lacks access control gating before executing its table-emptying logic. - Trigger conditions: No authentication, prior session, or user interaction is required; the attacker only needs to know or guess a valid list identifier.
- Attack vector: Network — a single unauthenticated HTTP GET request to the vulnerable endpoint is sufficient to trigger the action.
- Impact: Complete truncation (deletion) of the targeted list’s underlying database table, resulting in high-impact loss of integrity/availability of stored data, with no confidentiality impact.
Affected software
- Fabrik extension for Joomla (fabrikar.com), versions 1.0.0 through 4.7.1
Severity
- CVSS v4.0 Base Score: 8.7 (High)
- Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Mitigation and recommended actions
- Immediate: Upgrade Fabrik to version 4.7.2 or later, which restores ACL enforcement on the
doemptyaction. - If immediate patching is not possible: Restrict or block external access to Fabrik’s
com_fabriklist controller endpoints (e.g., via web server or WAF rules) until the update can be applied, and take fresh database backups of Fabrik list tables to enable recovery from any unauthorized truncation.

