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CVE-2021-36038.1HighCWE-829

CVE-2021-3603: Inclusion of Functionality from Untrusted Control Sphere in PHPMailer/PHPMailer

PHPMailer

Vendor fix available · Affected: PHPMailer · Exploitation: possible (1 to 10%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

2.3%probability of exploitation in the next 30 days
83rd percentile
050100

Higher than 83% of scored CVEs

8.1HighCVSS 3.1
LowHigh

DescriptionCVE.org

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 products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

  • PHPMailer · PHPMailerbefore 6.5.0

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas
Exploitation
Possible (1 to 10%). EPSS between 1% and 10%.
CISA KEV
Not listed
Public check
No public nuclei template
Vendor
PHPMailer
Published
June 2021

CoverageNo articles yet

No CyberSIXT article names CVE-2021-3603 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References

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