# Recipe Maker <= 10.9.1 - Authenticated (Contributor+) Insecure Direct Object Reference to Arbitrary Post and List Unpublishing and Author Reassignment

- **ID:** WPSEC-2026-2228
- **Plugin:** WP Recipe Maker (`wp-recipe-maker`), https://wordpress.org/plugins/wp-recipe-maker/
- **Affected versions:** from 9.0.0 before 10.9.2
- **Fixed in:** 10.9.2 (Update to 10.9.2 or later.)
- **Severity:** Medium 5.4 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L)
- **Weakness:** CWE-639
- **Usage among sites WPSec scans:** plugin Medium, affected versions Medium (as of 2026-11-03)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/wp-recipe-maker
- **Fix released:** 2026-10-30
- **Published:** 2026-11-03
- **URL:** https://wpsec.com/vuln/WPSEC-2026-2228/

## Description

The WP Recipe Maker plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions 9.0.0 through 10.9.1. When a post is saved, the plugin updates every list it finds in that post's content (wprm-list shortcode or wp-recipe-maker/list block) without checking that the saving user can edit those lists. For the block it also does not check that the referenced ID is a list at all. This makes it possible for authenticated attackers, with contributor-level access and above, to change the post status, dates, author and parent post relation of lists and other posts they do not own. This includes unpublishing other users' published posts and lists and reassigning them to the attacker.

## References

- https://wpsec.com/vuln/WPSEC-2026-2228/
- https://plugins.svn.wordpress.org/wp-recipe-maker/tags/10.9.2/
- https://wordpress.org/plugins/wp-recipe-maker/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-2228/

License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Free to use, share and adapt, also commercially, if you credit WPSec and link to this advisory.