What the vulnerability does
01Description
The Canadian Nutrition Facts Label plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'percentage' field in the Nutrition Label custom post type in all versions up to, and including, 3.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Explanation of Vulnerability in Simple Terms
02Summary
The Canadian Nutrition Facts Label product versions 3.0 and earlier contain a cross-site scripting vulnerability that allows authenticated users to inject malicious scripts. The vulnerability has scope change, meaning injected code can affect other users or components beyond the vulnerable feature. An attacker with low-level account access can craft malicious input that executes in other users' browsers without requiring them to take additional action.
What an attacker can do
03Attacker Capabilities
Inject malicious JavaScript that runs in other users' browsers and affects site functionality.
Potential impact on your site
04Site Impact
Authenticated users can inject scripts affecting other visitors; potential for credential theft, session hijacking, or site defacement.
Conditions required to exploit
05Prerequisites
Attacker needs a low-privilege account; no user interaction required from the victim.
Key dates
06Disclosure timeline
December 6, 2025
CVE published
April 8, 2026
Record updated
