The PHP project has announced a security release that fixes two critical security vulnerabilities discovered in PHP.

Due to the critical severity of the issues, site owners are encouraged to immediately update their installations of PHP. Your web host may already be working to update PHP and put web application firewall (WAF) rules in place to mitigate the vulnerabilities, but you should still check for updates from your web host and, if necessary, update PHP as soon as possible.

Within WordPress, you can see which version of PHP your site runs under Tools > Site Health > Info > Server.

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