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.

Progress 8 subject scores - English and Maths not matching basket scores

Assuming that you have grades for both language and Literature, the Progress 8 scores shown at the bottom of each of those columns will not match the English Basket calculation. The subject score is exactly that – and it includes all pupils with an entry in that subject. It’s worth remembering that the English basket score uses the highest English grade, multiplied by 2, provided the pupil has entered for both elements.

Maths is perhaps an easier one to explain, as we would expect the basket level score to be lower than the subject score; in cases where 1 or more pupils have not entered for Maths they will be excluded from the subject score, but not from the Maths basket score. Pupils are excluded from both scores if they do not have sufficient KS2 data.

When applying a class/group filter, the overall Progress 8 score is for the pupils in that class only (for all of their subjects), and so you can see the effect they are having. For example, your top set Maths class might have an overall Progress 8 score of +1, but this is how they are performing overall, not just in Maths. You would need to look at the Maths column to see how they are performing in this subject specifically.