Improper Input Validation Affecting phpmailer/phpmailer package, versions <6.1.6
Snyk CVSS
Attack Complexity
Low
User Interaction
Required
Scope
Changed
Threat Intelligence
EPSS
0.82% (82nd
percentile)
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Test your applications- Snyk ID SNYK-PHP-PHPMAILERPHPMAILER-570519
- published 28 May 2020
- disclosed 28 May 2020
- credit Unknown
Introduced: 28 May 2020
CVE-2020-13625 Open this link in a new tabHow to fix?
Upgrade phpmailer/phpmailer to version 6.1.6 or higher.
Overview
Affected versions of this package are vulnerable to Improper Input Validation. An attachment with a double quote within the attachment name, eg:
$mail->addAttachment('/tmp/attachment.tmp', 'filename.html";.jpg');
will result in a message containing these headers:
Content-Type: application/octet-stream; name="filename.html";.jpg"
Content-Disposition: attachment; filename="filename.html";.jpg"
The attachment will be named filename.html, and the trailing ";.jpg" will be ignored.
This can lead in bypassing mail filters based on MIME types.