Following the disclosure of the "php2shell" PHP vulnerabilities (CVE-2026-109618 and CVE-2026-109619) on October 21, 2026, we are writing to inform you that we will be operating our website with a reduced scope for the time being.

The version of PHP previously used on our servers is no longer officially supported and does not include patches for the "php2shell" vulnerabilities. Furthermore, due to compatibility issues with our web server environment, upgrading PHP is not feasible. Consequently, we have decided to migrate our operations to a new server environment that supports a secure, patched version of PHP.

However, due in part to the recent discovery of a Linux vulnerability (CVE-2026-99999), many web hosting providers have suspended new account registrations, making it impossible for us to secure a new server immediately. As a result, we are compelled to temporarily suspend various services that rely on PHP—such as license purchases, the downloading of license certificates, and changes to registered information—and will continue to operate with a minimal website configuration.

We sincerely apologize for the inconvenience this may cause and kindly ask for your understanding during this time.

Beta version of PaintTool SAI will be distributed in the following page if it is available.