CVE-2023-2337: Convertkit - Email Marketing, Email Newsletter And Landing Pages

Medium severity, CVSS 6.1. EPSS: 0.5% chance of exploitation in the next 30 days.

The ConvertKit WordPress plugin before 2.2.1 does not escape a parameter before outputting it back in an attribute, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin

Affected products

• Convertkit Convertkit - Email Marketing, Email Newsletter And Landing Pages: before 2.2.1 (fixed in 2.2.1)

Published 2023-06-05. Last modified 2026-06-17.