CVE-2016-10045

CRITICAL severity · CVSS 9.8 · Command injection

9.8CVSS CRITICAL

Summary

The isMail transport in PHPMailer before 5.2.20 might allow remote attackers to pass extra parameters to the mail command and consequently execute arbitrary code by leveraging improper interaction between the escapeshellarg function and internal escaping performed in the mail function in PHP. NOTE: this vulnerability exists because of an incorrect fix for CVE-2016-10033.

Impact & exploitability

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

Confidentiality impactHigh

Integrity impactHigh

Availability impactHigh

Exploit probability (EPSS)93%

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

Affected products we track (1)

WordPress

Recommendation

Apply the vendor fix promptly. Open any affected product above for its exact safe version.

Official patch: http://openwall.com/lists/oss-security/2016/12/28/1 ↗

Additional information

NVD record
http://openwall.com/lists/oss-security/2016/12/28/1Patch
http://seclists.org/fulldisclosure/2016/Dec/81Patch
http://www.securityfocus.com/archive/1/539967/100/0/threadedAdvisory
http://www.securitytracker.com/id/1037533Advisory
http://packetstormsecurity.com/files/140286/PHPMailer-Remote-Code-Execution.htmlAdvisory
http://packetstormsecurity.com/files/140350/PHPMailer-Sendmail-Argument-Injection.htmlAdvisory
http://www.rapid7.com/db/modules/exploit/multi/http/phpmailer_arg_injectionAdvisory
http://www.securityfocus.com/bid/95130Advisory