CVE-2018-18966

Severity: medium (CVSS 4.9 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-11-06 · updated 2026-06-17

Description

osCommerce 2.3.4.1 has an incomplete '.htaccess' for blacklist filtering in the "product" page. The .htaccess file in catalog/images/ bans the html extension, but Internet Explorer render HTML elements in a .eml file.

Affected products

osCommerce Online Merchant: 2.3.4.1

References

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

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