Medium severity · published Feb 27, 2026
CVE-2026-1558
WP Recipe Maker <= 10.3.2 - Insecure Direct Object Reference to Unauthenticated Arbitrary Post Metadata Modification via 'recipeId' Parameter
5.3
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 21% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WR
WP Recipe Maker · brechtvds
through 10.3.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-1558
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-1558
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/wp-recipe-maker/tags/10.3.2/includes/public/api/class-wprm-api-integrations.php#L40
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/wp-recipe-maker/tags/10.3.2/includes/public/class-wprm-instacart.php#L110
plugins.trac.wordpress.org
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=
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/90a5589f-f0e9-4511-9c5e-0afcee0824d5?source=cve
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