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Fabrik for Joomla CVE-2026-76599

| EUVDEUVD-2026-64316 HIGH
Improper Access Control (CWE-284)
2026-08-22 Joomla GHSA-wg6c-rfxw-w8f5
Authentication Bypass Fabrik Extension For Joomla
8.7
CVSS 4.0 · Vendor: Joomla
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Severity by source

Vendor (Joomla) PRIMARY
8.7 HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
7.5 HIGH

Unauthenticated AJAX endpoint accessible over the network (AV:N, PR:N, AC:L); only schema metadata disclosed, so I:N and A:N; full database structure exposed warrants C:H.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (Joomla).

CVSS VectorVendor: Joomla

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

2
Analysis Generated
Aug 22, 2026 - 15:10 vuln.today
CVE Published
Aug 22, 2026 - 14:14 cve.org
HIGH 8.7

DescriptionCVE.org

Joomla Extension - fabrikar.com - Unauthenticated database table list and table-prefix disclosure in Fabrik < 4.7.2 - The ajax_tables method of the elements model allows listings of arbitrary database tables including columns.

AnalysisAI

Unauthenticated database schema disclosure in Fabrik for Joomla (versions 1.0.0-4.7.1) exposes arbitrary table names, column listings, and the Joomla database table prefix to any remote attacker without credentials. The vulnerable ajax_tables method in the extension's elements model responds to AJAX requests without enforcing access control, violating the principle of least privilege (CWE-284). …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Send unauthenticated HTTP request to ajax_tables endpoint
Delivery
Bypass absent access control check
Exploit
Receive full database table and column listing
Execution
Extract Joomla table prefix from response
Impact
Use schema data to craft targeted SQL injection or credential theft attack
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Vulnerability AssessmentAI

Exploitation No special conditions are required beyond the Fabrik extension being installed and active on a Joomla site. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 score of 8.7 with AV:N/AC:L/AT:N/PR:N/UI:N/VC:H accurately reflects the ease of exploitation: no authentication, no special conditions, accessible over the network. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An unauthenticated attacker sends a crafted HTTP GET or POST request to the Fabrik ajax_tables AJAX endpoint on any publicly accessible Joomla site running Fabrik 1.0.0-4.7.1. The server responds with a structured list of all database table names and their columns, along with the Joomla table prefix. …
Remediation Upgrade Fabrik to version 4.7.2 or later, which resolves the improper access control on the ajax_tables endpoint. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours, identify all Joomla installations running Fabrik versions 1.0.0 through 4.7.1 using your asset management and vulnerability scanning tools; segregate internet-accessible instances for prioritized remediation. …

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Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-76599 vulnerability details – vuln.today
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