What’s Vulnerable › Vulnerabilities

CVE-2023-2337: ConvertKit < 2.2.1 - Reflected XSS

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-06-05 · updated 2026-06-17

Description

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: before 2.2.1 — fixed in 2.2.1

How to fix

Upgrade to a fixed version: ConvertKit 2.2.1. Check the vendor advisory for mitigations.

References

• https://wpscan.com/vulnerability/e5a6f834-80a4-406b-acae-57ffeec2e689
• https://wpscan.com/vulnerability/e5a6f834-80a4-406b-acae-57ffeec2e689

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