CVE-2018-18573

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-94

Description

osCommerce 2.3.4.1 has an incomplete '.htaccess' for blacklist filtering in the "product" page. Remote authenticated administrators can upload new '.htaccess' files (e.g., omitting .php) and subsequently achieve 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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