CVSS base score
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
What the vulnerability does
The Overstock Affiliate Links plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the `$_SERVER['PHP_SELF']` parameter in all versions up to, and including, 1.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
Explanation of Vulnerability in Simple Terms
The Overstock Affiliate Links plugin contains a cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts into web pages viewed by site visitors. An attacker can craft a malicious link that, when clicked by a user, executes JavaScript in the victim's browser. This can lead to session hijacking, credential theft, or defacement. The vulnerability affects all versions up to and including 1.1.
What an attacker can do
Inject malicious JavaScript that runs in visitors' browsers when they click a crafted link.
Potential impact on your site
Visitors' sessions and credentials can be compromised; site reputation and trust may be damaged.
Conditions required to exploit
Attacker must trick a site visitor into clicking a malicious link (user interaction required).
Key dates
External resources
