What the vulnerability does
01Description
The Login/Signup Popup ( Inline Form + Woocommerce ) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's xoo_el_action shortcode in all versions up to, and including, 2.8.5 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
The Login & Register Customizer plugin for WordPress contains a cross-site scripting (XSS) vulnerability in versions up to 2.8.5. An authenticated user with low privileges can inject malicious scripts that execute in the browsers of other site users, potentially stealing session tokens, modifying page content, or performing actions on their behalf. The vulnerability affects the entire site scope due to how the plugin processes user input.
What an attacker can do
03Attacker Capabilities
Inject JavaScript code that runs in other users' browsers and steals their session data or modifies site content.
Potential impact on your site
04Site Impact
Authenticated attackers can compromise other users' accounts and sessions, including administrators, without requiring those users to click a malicious link.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege WordPress account (e.g., subscriber or contributor role).
Key dates
06Disclosure timeline
February 20, 2025
CVE published
April 8, 2026
Record updated
