CVE-2020-27976: Oscommerce

Critical severity, CVSS 9.8. EPSS: 7.2% chance of exploitation in the next 30 days.

osCommerce Phoenix CE before 1.0.5.4 allows OS command injection remotely. Within admin/mail.php, a from POST parameter can be passed to the application. This affects the PHP mail function, and the sendmail -f option.

Affected products

• Oscommerce Oscommerce: before 1.0.5.4 (fixed in 1.0.5.4)

Published 2020-10-28. Last modified 2026-06-17.