Security Update – PHP Vulnerability
We are aware of the recent critical PHP security vulnerabilities highlighted by the National Cyber Security Centre (NCSC) on 21st October 2026.
We would like to reassure customers that our main platforms, 4Matrix Cloud and 4Matrix Fusion, do not use PHP and are therefore not directly affected by these vulnerabilities.
PHP is used within some of our supporting systems, including our customer support ticketing and billing systems. Our desktop application also communicates with our sales system for licence verification. These systems do not store customers' payment details or sensitive information as part of the licence verification process.
We have been in contact with our hosting provider, Krystal, who has confirmed that the necessary security fixes have been applied to address the reported vulnerabilities.
No action is required from our customers in relation to this advisory.
We take the security of our systems and customer information seriously and will continue to monitor security developments and work with our hosting provider to maintain appropriate protections.
You do not need to do anything, 4Matrix uses the SIMS.ini file to determine the location of the SIMS database when the SIMS Extract tool is launched from within 4Matrix. Please note that SIMS must be installed locally for this process to work.
If you use multiple SIMS databases, 4Matrix will extract data from the most recent database used.
Hosted SIMS schools are unable to use the SIMS Extract but reports are provided at www.4Matrix.com/simsreports