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      <title>CVE-2021-3603 — Inclusion of Functionality from Untrusted Control Sphere in PHPMailer/PHPMailer</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2021-3603</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; PHPMailer&lt;/p&gt;
&lt;p&gt;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&amp;#39;s scope by other means). If the $patternselect parameter to validateAddress() is set to &amp;#39;php&amp;#39; (the default, defined by PHPMailer::$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.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; PHPMailer&lt;/p&gt;
&lt;p&gt;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&amp;#39;s scope by other means). If the $patternselect parameter to validateAddress() is set to &amp;#39;php&amp;#39; (the default, defined by PHPMailer::$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.&lt;/p&gt;</content:encoded>
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