CVE-2026-27063 PUBLISHED

WordPress Kit (formerly ConvertKit) plugin <= 3.4.7 - Broken Access Control vulnerability

Assigner: Patchstack
Reserved: 17.02.2026 Published: 29.10.2026 Updated: 29.10.2026

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 3.4.7.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS Score: 5.3

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	None	Integrity Impact	None
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	Kit
Product	Kit (formerly ConvertKit)
Versions	Default: unaffected affected from 0 to 3.4.7 (incl.)

Solutions

Update the WordPress Kit (formerly ConvertKit) plugin to the latest available version (at least 3.4.8).

Credits

Taegyeong Yun | Patchstack Bug Bounty Program finder

References

https://patchstack.com/database/wordpress/plugin/convertkit/vulnerability/wordpress-kit-formerly-convertkit-plugin-3-4-7-broken-access-control-vulnerability?_s_id=cve

Problem Types

Missing Authorization CWE

Impacts

Exploiting Incorrectly Configured Access Control Security Levels