What the vulnerability does
01Description
The WPC Smart Quick View for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's woosq_btn shortcode in all versions up to, and including, 4.2.1 due to insufficient input sanitization and output escaping on user supplied attributes. 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
WPC Smart Quick View for WooCommerce versions up to 4.2.1 contain a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts that execute in the browsers of other site visitors, potentially compromising their sessions or stealing sensitive data. The vulnerability affects the plugin's quick view functionality and has site-wide impact due to scope change.
What an attacker can do
03Attacker Capabilities
Inject malicious JavaScript that runs in other users' browsers when they view affected pages.
Potential impact on your site
04Site Impact
Customers and admins visiting affected product pages may have their sessions hijacked or credentials stolen.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege account (e.g., subscriber or customer) on the WooCommerce site.
Key dates
06Disclosure timeline
August 20, 2025
CVE published
April 8, 2026
Record updated
