Joomla Extension - fabrikar.com - Unauthenticated remote code execution in Fabrik < 4.7.2 (CVE-2026-66915) | HOL Guard CVE

Critical · CVSS 10.0CVE-2026-66915

Joomla Extension - fabrikar.com - Unauthenticated remote code execution in Fabrik < 4.7.2

Answer in brief

CVE-2026-66915 records a Critical severity (CVSS 10.0) vulnerability in Joomla Extension - fabrikar.com - Unauthenticated remote code execution in Fabrik < 4.7.2. The current sources do not mark it as known exploited. The current feed maps fabrikar.com/Fabrik extension for Joomla (generic), fabrikar.com/Fabrik extension for Joomla (generic), fabrikar.com/Fabrik extension for Joomla (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 10, 2026Updated Aug 26, 2026Source checked Sep 24, 2026First seen by HOL Aug 10, 2026Material review Aug 26, 2026

Upstream Advisory

Key facts

Risk: Critical · CVSS 10.0
Exploitation: Not marked as known exploited
Affected software: 3 mapped packages or products
Fix availability: Not reported

Why this deserves its current priority

CVSS is 10.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps fabrikar.com/Fabrik extension for Joomla (generic), fabrikar.com/Fabrik extension for Joomla (generic), fabrikar.com/Fabrik extension for Joomla (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
fabrikar.com/Fabrik extension for Joomlageneric	1.0.0-4.6.6	Not reported
fabrikar.com/Fabrik extension for Joomlageneric	1.0.0-4.6.8	Not reported
fabrikar.com/Fabrik extension for Joomlageneric	1.0.0-4.7.1	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for fabrikar.com/Fabrik extension for Joomla, fabrikar.com/Fabrik extension for Joomla, fabrikar.com/Fabrik extension for Joomla.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 26, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 10, 2026

Sources and claim methodology

Upstream source description

Joomla Extension - fabrikar.com - Remote code execution in Fabrik < 4.7.2 - An unauthenticated attacker could execute arbitrary code by using the ajax_calc feature of the calc plugin.

Quoted source text, attributed separately from HOL analysis.