CVE-2026-1558

The WP Recipe Maker plugin for WordPress is vulnerable to an Insecure Direct Object Reference (IDOR) in versions up to, and including, 10.3.2. This is due to the /wp-json/wp-recipe-maker/v1/integrations/instacart REST API endpoint's permission_callback being set to __return_true and a lack of subsequent authorization or ownership checks on the user-supplied recipeId. This makes it possible for unauthenticated attackers to overwrite arbitrary post metadata (wprm_instacart_combinations) for any post ID on the site via the recipeId parameter.

The following products are affected by CVE-2026-1558 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-1558.

URL	Resource
https://plugins.trac.wordpress.org/browser/wp-recipe-maker/tags/10.3.2/includes/public/api/class-wprm-api-integrations.php#L40
https://plugins.trac.wordpress.org/browser/wp-recipe-maker/tags/10.3.2/includes/public/class-wprm-instacart.php#L110
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3464195%40wp-recipe-maker%2Ftrunk&old=3441130%40wp-recipe-maker%2Ftrunk&sfp_email=&sfph_mail=
https://www.wordfence.com/threat-intel/vulnerabilities/id/90a5589f-f0e9-4511-9c5e-0afcee0824d5?source=cve