# Fabrik (com_fabrik) 4.7.0 and 4.7.1 - Unauthenticated Remote Code Execution risk, update to 4.7.2 [Joomla Vulnerability Database](https://mysites.guru/vulnerabilities/)/CVE-2026-76609 CVE-2026-76609MediumCVSS 6.9CVE published 22 August 2026Added to mySites.guru 22 August 2026 # Fabrik (com\_fabrik) 4.7.0 and 4.7.1 - Unauthenticated Remote Code Execution risk, update to 4.7.2 Fabrik (the Joomla form and list builder by Fabrikar) shipped a series of security releases across the 4.7.x line. 4.7.2 is the release mySites.guru has verified, and 4.7.0 and 4.7.1 are missing part of that work. The calc element in this component carried a published unauthenticated remote code execution vulnerability (CVE-2026-66915 and CVE-2026-67282, both CVSS 10.0). mySites.guru worked with Fabrikar through the 4.7.x releases under coordinated disclosure, and 4.7.2 closes the issues raised. What to do: update Fabrik to 4.7.2, downloaded from fabrikar.com. Until you have, restrict front-end access to Fabrik forms and lists to trusted users. Sites below 4.7.0 are covered by a separate rule and remain exposed to the published CVSS 10.0 RCE. Copy citation ## Is my site affected? - **Affected** - Fabrik from 4.7.0 up to but not including 4.7.2 - **Fixed in** - 4.7.2 - **What to do** - Update Fabrik to 4.7.2 or later. [Check whether your sites are affected](https://mysites.guru/free-audit/) ## How CVE-2026-76609 is scored The base metrics as Joomla CNA published them, and what each one means for a site running an affected version. Threat and environmental metrics are left out: they describe a moment or a particular install rather than the flaw. 6.9 Medium CVSS 4.0, scored by Joomla CNA `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N` ### How it is reached - **AV:N Attack vector** - Network. Reachable across the internet - **AC:L Attack complexity** - Low. Nothing to work around, it just works - **AT:N Attack requirements** - None. Works against any affected install - **PR:N Privileges required** - None. No account needed - **UI:N User interaction** - None. Nobody has to be tricked into anything ### What it does to the site - **VC:N Confidentiality** - None. Nothing can be read - **VI:L Integrity** - Low. Some data can be altered - **VA:N Availability** - None. The site stays up ### What it does beyond the site - **SC:N Confidentiality** - None. Other systems keep their data - **SI:N Integrity** - None. Other systems keep their integrity - **SA:N Availability** - None. Other systems stay up The rule below is rated Critical for the set of 17 CVEs it covers together, not for this record on its own. ## Timeline 1. 10 August 2026[We published: The Fabrik Fiasco: Announced, Restricted, Relabelled](https://mysites.guru/blog/fabrik-unauthenticated-rce-calc-element/) 2. 22 August 2026CVE-2026-76609 record published by its CNA 3. 22 August 2026mySites.guru check added for Fabrik (from 4.7.0 up to but not including 4.7.2) ## Rule details Critical[CVE-2026-76571](https://mysites.guru/vulnerabilities/CVE-2026-76571/)[CVE-2026-76596](https://mysites.guru/vulnerabilities/CVE-2026-76596/)[CVE-2026-76597](https://mysites.guru/vulnerabilities/CVE-2026-76597/)[CVE-2026-76598](https://mysites.guru/vulnerabilities/CVE-2026-76598/)[CVE-2026-76600](https://mysites.guru/vulnerabilities/CVE-2026-76600/)[CVE-2026-76601](https://mysites.guru/vulnerabilities/CVE-2026-76601/)[CVE-2026-76602](https://mysites.guru/vulnerabilities/CVE-2026-76602/)[CVE-2026-76603](https://mysites.guru/vulnerabilities/CVE-2026-76603/)[CVE-2026-76604](https://mysites.guru/vulnerabilities/CVE-2026-76604/)[CVE-2026-76605](https://mysites.guru/vulnerabilities/CVE-2026-76605/)[CVE-2026-76606](https://mysites.guru/vulnerabilities/CVE-2026-76606/)[CVE-2026-76607](https://mysites.guru/vulnerabilities/CVE-2026-76607/)[CVE-2026-76608](https://mysites.guru/vulnerabilities/CVE-2026-76608/)[CVE-2026-76609](https://mysites.guru/vulnerabilities/CVE-2026-76609/)[CVE-2026-77027](https://mysites.guru/vulnerabilities/CVE-2026-77027/)[CVE-2026-77992](https://mysites.guru/vulnerabilities/CVE-2026-77992/)[CVE-2026-76599](https://mysites.guru/vulnerabilities/CVE-2026-76599/)2026-08-22 [Fabrik](https://mysites.guru/vulnerabilities/fabrik/) Affected versions: ≥ 4.7.0 and < 4.7.2 Full advisory: [our disclosure post](https://mysites.guru/blog/fabrik-unauthenticated-rce-calc-element/) ## Our disclosure post [![The Fabrik Fiasco: Announced, Restricted, Relabelled](https://mysites.guru/_astro/fabrik-unauthenticated-rce-calc-element.BBK044-m_AuNLM.webp) ### The Fabrik Fiasco: Announced, Restricted, Relabelled Two CVSS 10.0 RCEs in the Fabrik Joomla extension, and a chaotic run of security releases since. The vendor has moved past 4.7.0; be on 4.7.2. 10 Aug 2026 ](https://mysites.guru/blog/fabrik-unauthenticated-rce-calc-element/) ## Other vulnerabilities in Fabrik Updating for CVE-2026-76609 alone can leave a site on a release another rule still matches. These are the other flaws we check for in the same extension. ### [Fabrik](https://mysites.guru/vulnerabilities/fabrik/) Latest safe version: 4.7.2 - [CVE-2026-76571](https://mysites.guru/vulnerabilities/CVE-2026-76571/) Critical, from 4.7.0 up to but not including 4.7.2 - [CVE-2026-76596](https://mysites.guru/vulnerabilities/CVE-2026-76596/) Critical, from 4.7.0 up to but not including 4.7.2 - [CVE-2026-76597](https://mysites.guru/vulnerabilities/CVE-2026-76597/) Critical, from 4.7.0 up to but not including 4.7.2 - [CVE-2026-76598](https://mysites.guru/vulnerabilities/CVE-2026-76598/) Critical, from 4.7.0 up to but not including 4.7.2 - [CVE-2026-76600](https://mysites.guru/vulnerabilities/CVE-2026-76600/) Critical, from 4.7.0 up to but not including 4.7.2 - [CVE-2026-76601](https://mysites.guru/vulnerabilities/CVE-2026-76601/) Critical, from 4.7.0 up to but not including 4.7.2 - [CVE-2026-76602](https://mysites.guru/vulnerabilities/CVE-2026-76602/) Critical, from 4.7.0 up to but not including 4.7.2 - [CVE-2026-76603](https://mysites.guru/vulnerabilities/CVE-2026-76603/) Critical, from 4.7.0 up to but not including 4.7.2 [All 20 CVEs in Fabrik](https://mysites.guru/vulnerabilities/fabrik/) ## References - [CVE-2026-76609 on cve.org (the official CVE record)](https://www.cve.org/CVERecord?id=CVE-2026-76609) - [CVE-2026-76609 in the NIST National Vulnerability Database](https://nvd.nist.gov/vuln/detail/CVE-2026-76609) - [The Fabrik Fiasco: Announced, Restricted, Relabelled](https://mysites.guru/blog/fabrik-unauthenticated-rce-calc-element/) ## CVE-2026-76609 questions Show all Which versions are affected by CVE-2026-76609? [CVE-2026-76609](https://mysites.guru/vulnerabilities/CVE-2026-76609/) affects Fabrik from 4.7.0 up to but not including 4.7.2. The fix is in 4.7.2. How do I fix CVE-2026-76609? Update Fabrik to 4.7.2 or later. Then confirm the installed version on the Joomla administrator's Extensions: Manage screen. How severe is CVE-2026-76609? Joomla CNA scores it 6.9 (Medium) under CVSS 4.0. In plain terms: reachable across the internet, no account needed and nobody has to be tricked into anything. ## Running an affected version on a site you manage? A free audit tells you which of your Joomla and WordPress sites run an affected version, which are out of date, and which have not been backed up. No card required. If a site is already compromised, [fix.mysites.guru](https://fix.mysites.guru/) is a single fixed fee per incident, usually resolved the same day. This check is part of the [mySites.guru Joomla vulnerability scanner](https://mysites.guru/joomla-vulnerability-scanner/), which reads every installed extension's version on each audit. Browse the rest of the [Joomla vulnerability database](https://mysites.guru/vulnerabilities/). Rules current as of 14 October 2026.