What is CVE-2026-16066?

CVE-2026-16066 is a medium-severity vulnerability in Welcart E-commerce, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-08-12.

How severe is CVE-2026-16066?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Welcart E-commerce

CVE-2026-16066

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…

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Unknown Welcart E-commerce — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-16066?: CVE-2026-16066 is a medium-severity vulnerability in Welcart E-commerce, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-08-12.
How severe is CVE-2026-16066?: Medium severity. CVSS v3 base score is 5.4 out of 10.