CVE-2021-3603 (GCVE-0-2021-3603)
Vulnerability from cvelistv5
Published
2021-06-17 12:09
Modified
2024-08-03 17:01
Severity ?
8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-829 - Inclusion of Functionality from Untrusted Control Sphere
Summary
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.
References
Impacted products
Vendor Product Version
PHPMailer PHPMailer Version: unspecified   < 6.5.0
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