CVE-2018-18572

Severity: high (CVSS 7.2 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-08-22 · updated 2026-06-17
Weakness: CWE-434

Description

osCommerce 2.3.4.1 has an incomplete '.htaccess' for blacklist filtering in the "product" page. Because of this filter, script files with certain PHP-related extensions (such as .phtml and .php5) didn't execute in the application. But this filter didn't prevent the '.pht' extension. Thus, remote authenticated administrators can upload '.pht' files for arbitrary PHP code execution via a /catalog/admin/categories.php?cPath=&action=new_product URI.

Affected products

Os Commerce: 2.3.4.1

References

https://github.com/osCommerce/oscommerce2/issues/631
https://github.com/osCommerce/oscommerce2/issues/631

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