---
id: "CVE-2026-110880"
kind: "vulnerability"
aliases: ["CVE-2026-110880"]
title: "Kit ConvertKit WordPress plugin: missing authorization check through 3.4.6"
severity: "medium"
cvss: 6.5
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["convertkit", "kit", "package", "wordpress"]
not_affected_if: ["plugin-version-above-3.4.6"]
published_at: "2026-10-18T11:16:37+00:00"
first_seen_at: "2026-10-23T21:57:14+00:00"
updated_at: "2026-10-25T03:57:33+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-110880", "first_seen_at": "2026-10-23T21:57:14+00:00"}]
---

# Kit ConvertKit WordPress plugin: missing authorization check through 3.4.6

The Kit (formerly ConvertKit) convertkit plugin has a missing authorization check, so access control is not enforced on some actions. The sources do not say exactly which data or actions an attacker could reach.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed Kit (ConvertKit) plugin version in the WordPress admin plugins list or with `wp plugin get convertkit --field=version`
- unknown for any other check, the sources do not say

## Fix

- Update the Kit (ConvertKit) plugin to a version later than `3.4.6`
- unknown for any other action, the sources do not say

## Timeline

- 2026-10-23T21:57:14+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-110880

## From the sources

Missing Authorization vulnerability in Kit Kit (formerly ConvertKit) convertkit allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Kit (formerly ConvertKit): from n/a through 3.4.6.

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