CVE-2021-3603

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Source
https://cve.org/CVERecord?id=CVE-2021-3603
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-3603.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-3603
Aliases
Downstream
Published
2021-06-17T12:15:08.150Z
Modified
2026-05-16T04:03:06.008804198Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

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.

Database specific 
{
    "unresolved_ranges": [
        {
            "source": "CPE_FIELD",
            "cpes": [
                "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
                "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*"
            ],
            "extracted_events": [
                {
                    "last_affected": "33"
                },
                {
                    "last_affected": "34"
                }
            ],
            "vendor_product": "fedoraproject:fedora"
        }
    ]
}
References

Affected packages