CVE-2026-1558 Missing authorization in WP Recipe Maker
Unauthenticated attackers can modify arbitrary post metadata in WP Recipe Maker due to missing authorization checks on the recipeId parameter.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-1558?
CVE-2026-1558 is a medium-severity missing authorization vulnerability in brechtvds WP Recipe Maker, published on 27 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
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.
Weakness: CWE-639
Which versions are affected by CVE-2026-1558?
How do I fix CVE-2026-1558?
No fix has been published for CVE-2026-1558 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-1558 being exploited?
There is no known exploitation of CVE-2026-1558 in the wild and no public exploit code.
Sources
Also known as GHSA-2r7h-m6jv-58qc.