Name: CVE-2016-10033: Improper Neutralization of Argument Delimiters in a Command
Creator: Rapid7
Published: 2016-12-30T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2016-10033, CWE-88, CWE-77, Exploited in the Wild, CISA KEV Exploit, Metasploit Module, CVSS 9.8, EPSS 0.9447, CISA KEV

The mailSend function in the isMail transport in PHPMailer before 5.2.18 might allow remote attackers to pass extra parameters to the mail command and consequently execute arbitrary code via a \" (backslash double quote) in a crafted Sender property.

CVSS Details

CVSS 3.1 Base Score: 9.8
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Alpine Linux	—	Upgrade php-phpmailerUpgrade php5-phpmailer	Aug 30, 2017	Dec 30, 2016
Arch Linux	—	Upgrade to the latest version of Arch Linux	Jul 11, 2025	Dec 30, 2016
Debian	—	Upgrade libphp-phpmailer	Jan 1, 2017	Dec 30, 2016
F5 Big Ip	—	Update F5 BIG-IP to the latest version	Jun 17, 2026	Jan 24, 2017
Freebsd	—	Upgrade phpmailerUpgrade tt-rss	Dec 27, 2016	Dec 26, 2016
Ubuntu	—	Upgrade libphp-phpmailer (Ubuntu Pro)	Mar 22, 2023	Dec 30, 2016

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CVSS Details

Covered by Rapid7

Prioritise with Active Threat Intelligence