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CVE PROGRAM SOURCE RECORD8.1 High

CVE-2021-3603

Inclusion of Functionality from Untrusted Control Sphere in PHPMailer/PHPMailer

Description

PHPMailer 6.4.1 and earlier contain a vulnerability that can result in untrusted code being called (if such code is injected into the host project's scope by other means). If the $patternselect parameter to validateAddress() is set to 'php' (the default, defined by PHPMailer::$validator), and the global namespace contains a function called php, it will be called in preference to the built-in validator of the same name. Mitigated in PHPMailer 6.5.0 by denying the use of simple strings as validator function names.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

PHPMailer PHPMailer

  • unspecified to < 6.5.0affected

References