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Software intelligence

Convertkit vulnerabilities

5 tracked advisories · slug convertkit

Important: Convertkit appearing in this catalog does not mean your website is affected. Exposure depends on your installed version. How SiteRespond intelligence works

Tracked advisories

5

Latest advisory

22 July 2026

CISA KEV matches

0

In this WordPress feed

WordPress slug

convertkit

Plugin

What this means for Convertkit

This catalog lists 5 known advisories affecting Convertkit. The most recent was published on 22 July 2026. If you use this software, compare your installed version against the affected ranges on each advisory and update to a fixed release outside those ranges. SiteRespond Defence checks your actual installed version when the plugin is connected — listing here does not by itself mean your site is vulnerable.

Latest issues

  • Kit (formerly ConvertKit) – Email Newsletter, Email Marketing, Membership, Subscribers and Landing Pages <= 3.3.5 - Missing Authorization

    This advisory describes a other issue in the affected software. Review the source advisory and your installed version to assess exposure.

    Published 22 July 2026

  • ConvertKit <= 2.4.9 - Missing Authorization

    This advisory describes a other issue in the affected software. Review the source advisory and your installed version to assess exposure.

    Published 20 June 2024

  • ConvertKit <= 2.4.5 - Unauthenticated Sensitive Information Exposure

    This advisory describes a other issue in the affected software. Review the source advisory and your installed version to assess exposure.

    Published 5 April 2024

Vulnerability types

  • Cross-site scripting2

Authentication (inferred from titles)

  • Unauthenticated1
  • Authenticated1
  • Unspecified3

Advisory history

Known Convertkit advisories published by month.

All advisories

Check whether your installed version is affected

SiteRespond Defence matches your installed Convertkit version against this catalog when the Defence plugin is connected to your WordPress site.