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 CoSign Single Signon plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the `$_SERVER['PHP_SELF']` parameter in all versions up to, and including, 0.3.1 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
CoSign Single Signon versions 0.3.1 and earlier contain a cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts into the application. An attacker can craft a malicious link that, when visited by a user, executes arbitrary JavaScript in the victim's browser within the context of the vulnerable application. This can lead to session hijacking, credential theft, or unauthorized actions performed on behalf of the victim.
What an attacker can do
Inject and execute malicious JavaScript in a user's browser session to steal credentials or perform unauthorized actions.
Potential impact on your site
Users of CoSign Single Signon are at risk of account compromise and unauthorized access if they interact with attacker-controlled links.
Conditions required to exploit
Attacker must trick a user into clicking a malicious link or visiting a crafted page (user interaction required).
Key dates
External resources
