Reporting Security Issues

Please report security vulnerabilities on GitHub at: https://github.com/php/php-src/security/advisories/new

If for some reason you cannot use the form at GitHub, or you need to talk to somebody about a PHP security issue that might not be a bug report, please write to security@php.net.

Vulnerability reports remain private until published. When published, you will be credited as a contributor, and your contribution will reflect the MITRE Credit System.

Classification

Issues commonly reported that are not considered security issues include (but are not limited to):

• Invocation of specially crafted, malicious code intended to cause memory violations. This commonly includes malicious error handlers, destructors or __toString() functions. PHP does not offer sandboxing, and the execution of untrusted code is always considered unsafe. Such issues are bugs, but not security issues. They may still be reported, though please avoid reporting the known issues.

• Passing malicious arguments to functions clearly not intended to receive unsanitized values, e.g. mysqli_query(). escapeshellarg() on the other hand should clearly be hardened against unsafe inputs.

• The use of legacy APIs or settings known to be insecure, particularly those documented as such, or those with a secure alternative.

• The use of FFI.

• open_basedir or disable_functions bypasses.

• Malicious unserialize() inputs.

Vulnerability Policy

Our full policy is described at https://github.com/php/policies/blob/main/security-classification.rst

Source: SECURITY.md