Vulnerability · Published Feb 27, 2026 · Assigned by Wordfence
CVE-2026-1558WP Recipe Maker <= 10.3.2 - Insecure Direct Object Reference to Unauthenticated Arbitrary Post Metadata Modification via 'recipeId' Parameter
Medium 5.3
In plain English
A medium-severity authorization bypass via user-controlled key in WP Recipe Maker from brechtvds. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| brechtvds | WP Recipe Maker | 0 – through 10.3.2 |
Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/90a5589f-f0e9-4511-9c5e-0afcee0824d5?source=cve
- 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/browser/wp-recipe-maker/tags/10.3.2/includes/public/api/class-wprm-api-integrations.php#L40
- 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=