CVE-2026-76609: CWE-284 Improper Access Control in fabrikar.com Fabrik extension for Joomla
CVE-2026-76609 is a medium severity vulnerability in the Fabrik extension for Joomla versions 1.0.0 through 4.7.1. It allows unauthenticated attackers to modify any comment via the onUpdateComment endpoint due to missing access control checks.
AI Analysis
Technical Summary
The Fabrik extension for Joomla contains an improper access control vulnerability (CWE-284) in versions 1.0.0 to 4.7.1. Specifically, the onUpdateComment endpoint does not perform any access checks, enabling unauthenticated users to modify any comment. This vulnerability has a CVSS 4.0 base score of 6.9, reflecting network attack vector, no privileges required, no user interaction, and limited impact on integrity. No official remediation or patch has been documented as of the publication date.
Potential Impact
An attacker can modify any comment in the affected Fabrik extension without authentication, potentially leading to unauthorized content manipulation. This could affect the integrity of user-generated content within Joomla sites using this extension.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider restricting access to the onUpdateComment endpoint or disabling the Fabrik comment functionality if feasible.
CVE-2026-76609: CWE-284 Improper Access Control in fabrikar.com Fabrik extension for Joomla
Description
CVE-2026-76609 is a medium severity vulnerability in the Fabrik extension for Joomla versions 1.0.0 through 4.7.1. It allows unauthenticated attackers to modify any comment via the onUpdateComment endpoint due to missing access control checks.
CVSS v4.0
Score 6.9medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Fabrik extension for Joomla contains an improper access control vulnerability (CWE-284) in versions 1.0.0 to 4.7.1. Specifically, the onUpdateComment endpoint does not perform any access checks, enabling unauthenticated users to modify any comment. This vulnerability has a CVSS 4.0 base score of 6.9, reflecting network attack vector, no privileges required, no user interaction, and limited impact on integrity. No official remediation or patch has been documented as of the publication date.
Potential Impact
An attacker can modify any comment in the affected Fabrik extension without authentication, potentially leading to unauthorized content manipulation. This could affect the integrity of user-generated content within Joomla sites using this extension.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider restricting access to the onUpdateComment endpoint or disabling the Fabrik comment functionality if feasible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Joomla
- Date Reserved
- 2026-08-19T14:48:01.169Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a89b445acd9273b49249761
Added to database: 08/22/2026, 14:37:57 UTC
Last enriched: 08/22/2026, 14:53:16 UTC
Last updated: 08/22/2026, 15:22:09 UTC
Views: 5
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