CVE-2022-4320: Mhsoftware WordPress Events Calendar Plugin

Medium severity, CVSS 6.1. EPSS: 0.9% chance of exploitation in the next 30 days.

The WordPress Events Calendar WordPress plugin before 1.4.5 does not sanitize and escapes a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against both unauthenticated and authenticated users (such as high-privilege ones like admin).

Affected products

• Mhsoftware WordPress Events Calendar Plugin: before 1.4.5 (fixed in 1.4.5)

Published 2023-01-16. Last modified 2026-06-17.