CVE-2025-55998: Mezereon Smart Search And Filter

High severity, CVSS 8.1. EPSS: 0.4% chance of exploitation in the next 30 days.

A cross-site scripting (XSS) vulnerability in Smart Search & Filter Shopify and BigCommerce apps allows a remote attacker to execute arbitrary JavaScript in the web browser of a user, by including a malicious payload into several filter parameter

Affected products

• Mezereon Smart Search And Filter: version 1.0 only

Published 2025-09-08. Last modified 2026-06-17.