CVSS base score
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
What the vulnerability does
The Brevo for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘user_connection_id’ parameter in all versions up to, and including, 4.0.49 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Explanation of Vulnerability in Simple Terms
The Brevo for WooCommerce plugin versions 4.0.49 and earlier contain a cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts into the site without authentication. The vulnerability affects the plugin's handling of user input, enabling attackers to execute arbitrary JavaScript in visitors' browsers. This can lead to session hijacking, credential theft, or malware distribution.
What an attacker can do
Inject malicious JavaScript that runs in visitors' browsers, potentially stealing session cookies or credentials.
Potential impact on your site
Visitors to your site may have their sessions hijacked or credentials stolen through injected scripts.
Conditions required to exploit
Network access only; no authentication or user interaction required.
Key dates
External resources
