Description
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.
Metrics
CVSS 3.1 9.8/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://packetstormsecurity.com/files/140291/PHPMailer-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/140350/PHPMailer-Sendmail-Argument-Injection.htmlExploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2016/Dec/78Mailing List, Patch, Third Party Advisory
- http://www.rapid7.com/db/modules/exploit/multi/http/phpmailer_arg_injectionExploit, Third Party Advisory
- http://www.securityfocus.com/archive/1/539963/100/0/threadedBroken Link, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/95108Broken Link, Exploit, Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037533Broken Link, Third Party Advisory, VDB Entry
- https://developer.joomla.org/security-centre/668-20161205-phpmailer-security-advisory.htmlThird Party Advisory
- https://github.com/PHPMailer/PHPMailer/releases/tag/v5.2.18Patch, Vendor Advisory
- https://github.com/PHPMailer/PHPMailer/wiki/About-the-CVE-2016-10033-and-CVE-2016-10045-vulnerabilitiesPatch, Vendor Advisory
- https://legalhackers.com/advisories/PHPMailer-Exploit-Remote-Code-Exec-CVE-2016-10033-Vuln.htmlExploit, Patch, Third Party Advisory
- https://www.drupal.org/psa-2016-004Third Party Advisory
- https://www.exploit-db.com/exploits/40968/Exploit, Patch, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/40969/Exploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/40970/Exploit, Patch, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/40974/Exploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/40986/Exploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/41962/Exploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/41996/Exploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/42024/Exploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/42221/Exploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/140291/PHPMailer-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/140350/PHPMailer-Sendmail-Argument-Injection.htmlExploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2016/Dec/78Mailing List, Patch, Third Party Advisory
- http://www.rapid7.com/db/modules/exploit/multi/http/phpmailer_arg_injectionExploit, Third Party Advisory
- http://www.securityfocus.com/archive/1/539963/100/0/threadedBroken Link, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/95108Broken Link, Exploit, Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037533Broken Link, Third Party Advisory, VDB Entry
- https://developer.joomla.org/security-centre/668-20161205-phpmailer-security-advisory.htmlThird Party Advisory
- https://github.com/PHPMailer/PHPMailer/releases/tag/v5.2.18Patch, Vendor Advisory
- https://github.com/PHPMailer/PHPMailer/wiki/About-the-CVE-2016-10033-and-CVE-2016-10045-vulnerabilitiesPatch, Vendor Advisory
- https://legalhackers.com/advisories/PHPMailer-Exploit-Remote-Code-Exec-CVE-2016-10033-Vuln.htmlExploit, Patch, Third Party Advisory
- https://www.drupal.org/psa-2016-004Third Party Advisory
- https://www.exploit-db.com/exploits/40968/Exploit, Patch, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/40969/Exploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/40970/Exploit, Patch, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/40974/Exploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/40986/Exploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/41962/Exploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/41996/Exploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/42024/Exploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/42221/Exploit, Third Party Advisory, VDB Entry
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-10033US Government Resource
Timeline
- Published
- Dec 30, 2016
- Last modified
- Jun 17, 2026
- Added to CISA KEV
- Jul 7, 2025
- NVD status
- Analyzed