The WP Recipe Maker plugin for WordPress suffers from a stored cross-site scripting vulnerability (CWE-79) in the Recipe Notes functionality. This vulnerability allows authenticated users with contributor or higher privileges to inject arbitrary web scripts due to improper input neutralization during web page generation. The malicious scripts execute in the context of users who view the injected pages, potentially leading to information disclosure or session hijacking. The vulnerability affects all versions up to and including 9.1.0. The CVSS 3.1 base score is 6.4, reflecting network attack vector, low attack complexity, required privileges at the contributor level, no user interaction, and impacts on confidentiality and integrity with no availability impact.

An attacker with contributor-level or higher permissions can exploit this vulnerability to inject persistent malicious scripts into pages via the Recipe Notes feature. These scripts execute in the browsers of users who view the affected pages, potentially allowing theft of sensitive information or unauthorized actions performed on behalf of the user. The impact is limited to confidentiality and integrity, with no direct availability impact. Since the attacker must be authenticated with contributor or higher privileges, the risk is mitigated by access controls but remains significant within trusted user groups.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict contributor-level access to trusted users only and consider disabling or limiting the use of the Recipe Notes feature. Monitor for updates from the WP Recipe Maker vendor or WordPress plugin repository for patches addressing this vulnerability.