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
2026-05-13T12:02:31.984334688Z
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",
            "cpe": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "33"
                }
            ]
        },
        {
            "source": "CPE_FIELD",
            "cpe": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "34"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/phpmailer/phpmailer

Affected ranges

Type
GIT
Repo
https://github.com/phpmailer/phpmailer
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
9256f12d8fb0cd0500f93b19e18c356906cbed3d
Database specific 
{
    "source": "CPE_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "6.4.1"
        }
    ],
    "cpe": "cpe:2.3:a:phpmailer_project:phpmailer:*:*:*:*:*:*:*:*"
}

Affected versions

v2.*
v2.2.1
v5.*
v5.2.0
v5.2.1
v5.2.2
v5.2.4
v5.2.5
v5.2.6
v5.2.7
v5.2.8
v5.2.9
v6.*
v6.0.7
v6.1.0
v6.1.1
v6.1.2
v6.1.3
v6.1.4
v6.1.5
v6.1.6
v6.1.7
v6.1.8
v6.2.0
v6.3.0
v6.4.0
v6.4.1

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-3603.json"