Vulnerabilities / Kit (formerly ConvertKit) – Email Subscribers, Email Newsletter, Email Marketing, Landing Pages and Membership / WPSEC-2026-2852
Kit (formerly ConvertKit) – Email Subscribers, Email Newsletter, Email Marketing, Landing Pages and Membership <= 3.5.0 - Unauthenticated Sensitive Information Exposure via Site Search
Medium 5.3
CWE-200Fixed in 3.5.1
- ID
- WPSEC-2026-2852
- Plugin
- Kit (formerly ConvertKit) – Email Subscribers, Email Newsletter, Email Marketing, Landing Pages and Membership (convertkit)
- Affected
- from 2.1.0 before 3.5.1
- Remediation
- Update to 3.5.1 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Weakness
- CWE-200
- Usage
- Plugin Medium · Affected versions Medium among sites WPSec scans, 2026-11-12
- Attack surface
- Kit (formerly ConvertKit) – Email Subscribers, Email Newsletter, Email Marketing, Landing Pages and Membership on WPSec AttackSurface
- Fix released
- Published
Description
The Kit (formerly ConvertKit) plugin for WordPress is vulnerable to Sensitive Information Exposure via the site search in all versions up to, and including, 3.5.0. This is due to restricted Member Content pages and posts being included in search results when the search terms match only their hidden content. This makes it possible for unauthenticated attackers to find out, by searching, whether specific words appear in member-only content.
References
- https://wpsec.com/vuln/WPSEC-2026-2852/
- https://plugins.svn.wordpress.org/convertkit/tags/3.5.1/
- https://wordpress.org/plugins/convertkit/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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