Input validation error in PHPMailer - CVE-2020-13625

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Main Vulnerability Database Vulnerabilities #VU29531

Input validation error in PHPMailer - CVE-2020-13625

Published: July 6, 2020


Vulnerability identifier: #VU29531
CSH Severity: Low
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-13625
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to bypass implemented security restrictions

The vulnerability exists due to insufficient validation of user-supplied  file attachments with  a double quote character. A remote attacker can pass specially crafted filename to the application and bypass implemented security restrictions.


Affected software

PHPMailer
Cacti
cacti (Alpine package)
libphp-phpmailer (Ubuntu package)
php-PHPMailer
php-phpmailer6
SUSE Package Hub for SUSE Linux Enterprise
SUSE Linux
Opensuse
Ubuntu
Fedora

How to mitigate CVE-2020-13625

Install updates from vendor's website.

PHPMailer - update to 6.1.6
Cacti - update to 1.2.13
libphp-phpmailer (Ubuntu package) - addressed in versions Ubuntu Pro, 5.2.14+dfsg-2.3+deb9u2build0.18.04.1
php-PHPMailer - addressed in versions 5.2.28-2.fc31, 5.2.28-2.fc32
php-phpmailer6 - addressed in versions 6.1.6-1.fc31, 6.1.6-2.fc32

External References

Related Security Bulletins