Postiz · Postiz · CVE-2026-42556
**Name of the Vulnerable Software and Affected Versions**
Postiz versions 2.21.6 through 2.21.6
**Description**
Authenticated users with post creation privileges can store arbitrary HTML within post content by tampering with their save request. This content is then rendered on the main application origin using `dangerouslySetInnerHTML` when a user visits the public preview link "/p/<postId>?share=true".
**Recommendations**
Update to version 2.21.7.