CVE-2016-10033

CRITICALCISA KEV

9.8

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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published12/30/2016

Last Modified10/22/2025

Sourcekev

Honeypot Sightings0

CISA KEV

VendorPHP

ProductPHPMailer

Vulnerability NamePHPMailer Command Injection Vulnerability

KEV Date Added2025-07-07

Remediation Due Date2025-07-28

Ransomware UseUnknown

Affected Products

joomla:joomla\!phpmailer_project:phpmailerwordpress:wordpress

Weaknesses (CWE)

CWE-88CWE-88

References

http://packetstormsecurity.com/files/140291/PHPMailer-Remote-Code-Execution.html(cve@mitre.org)

http://packetstormsecurity.com/files/140350/PHPMailer-Sendmail-Argument-Injection.html(cve@mitre.org)

http://seclists.org/fulldisclosure/2016/Dec/78(cve@mitre.org)

http://www.rapid7.com/db/modules/exploit/multi/http/phpmailer_arg_injection(cve@mitre.org)

http://www.securityfocus.com/archive/1/539963/100/0/threaded(cve@mitre.org)

http://www.securityfocus.com/bid/95108(cve@mitre.org)

http://www.securitytracker.com/id/1037533(cve@mitre.org)

https://developer.joomla.org/security-centre/668-20161205-phpmailer-security-advisory.html(cve@mitre.org)

https://github.com/PHPMailer/PHPMailer/releases/tag/v5.2.18(cve@mitre.org)

https://github.com/PHPMailer/PHPMailer/wiki/About-the-CVE-2016-10033-and-CVE-2016-10045-vulnerabilities(cve@mitre.org)

https://legalhackers.com/advisories/PHPMailer-Exploit-Remote-Code-Exec-CVE-2016-10033-Vuln.html(cve@mitre.org)

https://www.drupal.org/psa-2016-004(cve@mitre.org)

https://www.exploit-db.com/exploits/40968/(cve@mitre.org)

https://www.exploit-db.com/exploits/40969/(cve@mitre.org)

https://www.exploit-db.com/exploits/40970/(cve@mitre.org)

https://www.exploit-db.com/exploits/40974/(cve@mitre.org)

https://www.exploit-db.com/exploits/40986/(cve@mitre.org)

https://www.exploit-db.com/exploits/41962/(cve@mitre.org)

https://www.exploit-db.com/exploits/41996/(cve@mitre.org)

https://www.exploit-db.com/exploits/42024/(cve@mitre.org)

https://www.exploit-db.com/exploits/42221/(cve@mitre.org)

http://packetstormsecurity.com/files/140291/PHPMailer-Remote-Code-Execution.html(af854a3a-2127-422b-91ae-364da2661108)

http://packetstormsecurity.com/files/140350/PHPMailer-Sendmail-Argument-Injection.html(af854a3a-2127-422b-91ae-364da2661108)

http://seclists.org/fulldisclosure/2016/Dec/78(af854a3a-2127-422b-91ae-364da2661108)

http://www.rapid7.com/db/modules/exploit/multi/http/phpmailer_arg_injection(af854a3a-2127-422b-91ae-364da2661108)

http://www.securityfocus.com/archive/1/539963/100/0/threaded(af854a3a-2127-422b-91ae-364da2661108)

http://www.securityfocus.com/bid/95108(af854a3a-2127-422b-91ae-364da2661108)

http://www.securitytracker.com/id/1037533(af854a3a-2127-422b-91ae-364da2661108)

https://developer.joomla.org/security-centre/668-20161205-phpmailer-security-advisory.html(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/PHPMailer/PHPMailer/releases/tag/v5.2.18(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/PHPMailer/PHPMailer/wiki/About-the-CVE-2016-10033-and-CVE-2016-10045-vulnerabilities(af854a3a-2127-422b-91ae-364da2661108)

https://legalhackers.com/advisories/PHPMailer-Exploit-Remote-Code-Exec-CVE-2016-10033-Vuln.html(af854a3a-2127-422b-91ae-364da2661108)

https://www.drupal.org/psa-2016-004(af854a3a-2127-422b-91ae-364da2661108)

https://www.exploit-db.com/exploits/40968/(af854a3a-2127-422b-91ae-364da2661108)

https://www.exploit-db.com/exploits/40969/(af854a3a-2127-422b-91ae-364da2661108)

https://www.exploit-db.com/exploits/40970/(af854a3a-2127-422b-91ae-364da2661108)

https://www.exploit-db.com/exploits/40974/(af854a3a-2127-422b-91ae-364da2661108)

https://www.exploit-db.com/exploits/40986/(af854a3a-2127-422b-91ae-364da2661108)

https://www.exploit-db.com/exploits/41962/(af854a3a-2127-422b-91ae-364da2661108)

https://www.exploit-db.com/exploits/41996/(af854a3a-2127-422b-91ae-364da2661108)

https://www.exploit-db.com/exploits/42024/(af854a3a-2127-422b-91ae-364da2661108)

https://www.exploit-db.com/exploits/42221/(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-10033(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.