Websites have been taken offline after developers of the PHP programming language identified critical security vulnerabilities, prompting services to update their computer systems.
The vulnerabilities affect software built using PHP, although the supplied information does not identify the websites involved or provide details about the nature of the flaws. Services are now working to update their systems in response to the discovery.
Taking websites offline is part of the immediate response described in the report. The move means affected online services may remain unavailable while the necessary updates are carried out.
PHP developers have characterised the vulnerabilities as critical. No further information is provided about whether the flaws have been exploited or how many websites or organisations are affected.
The latest known situation is that services are in a race to update their systems, with some websites offline during the process.
