CVE-2026-16066: Unknown Welcart E-Commerce

Medium severity, CVSS 5.4. EPSS: 0.2% chance of exploitation in the next 30 days.

The Welcart e-Commerce WordPress plugin before 2.11.34 does not sanitise or escape a product field before outputting it on the product pages, allowing users with the Author role and above to inject arbitrary web scripts that execute in the browser of any visitor viewing the product page.

Affected products

• Unknown Welcart E-Commerce: before 2.11.34 (fixed in 2.11.34)

Published 2026-08-12. Last modified 2026-08-26.