{"cve":"CVE-2016-10033","nvd":{"published":"2016-12-30T19:59:00.137","modified":"2026-06-17T00:38:55.477","status":"Analyzed","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-88"],"references":["http://packetstormsecurity.com/files/140291/PHPMailer-Remote-Code-Execution.html","http://packetstormsecurity.com/files/140350/PHPMailer-Sendmail-Argument-Injection.html","http://seclists.org/fulldisclosure/2016/Dec/78","http://www.rapid7.com/db/modules/exploit/multi/http/phpmailer_arg_injection","http://www.securityfocus.com/archive/1/539963/100/0/threaded"],"products":["joomla:joomla\\!","phpmailer_project:phpmailer","wordpress:wordpress"],"source":"nvd","synced_at":"2026-10-19T20:41:25.729257544+00:00"},"epss":{"cve":"CVE-2016-10033","score":0.99714,"percentile":0.99952,"date":"2026-10-31"},"kev":{"cve":"CVE-2016-10033","date_added":"2025-07-07","due_date":"2025-07-28","vendor":"PHP","product":"PHPMailer","known_ransomware":false},"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}