In line with current NCSC guidance we’ve taken this site offline as a precaution while we apply an urgent security update. There’s nothing you need to do.
The update protects against PHP2Shell, a recently disclosed vulnerability in PHP, the software this site is built on. Keeping the site offline while the fix goes in is the safest option for the site and for anyone using it.
We will bring everything back online as soon as patches have been released by PHP and related vendors and we have applied them.
Thank you for your patience.