CVSS base score
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
What the vulnerability does
The PhpList Subber plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.1. This is due to missing or incorrect nonce validation on the bulk_action_handler function. This makes it possible for unauthenticated attackers to trigger bulk synchronization of subscription forms via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Explanation of Vulnerability in Simple Terms
PhpList Subber versions 1.1 and earlier are vulnerable to cross-site request forgery (CSRF). An attacker can craft a malicious webpage that, when visited by a logged-in administrator, performs unwanted actions on the site without their knowledge. The vulnerability requires the victim to visit the attacker's page while authenticated to PhpList Subber.
What an attacker can do
Perform unauthorized actions on the site by tricking an authenticated admin into visiting a malicious webpage.
Potential impact on your site
An attacker can modify site settings or data by exploiting an admin's active session without their consent.
Conditions required to exploit
Victim must be logged into PhpList Subber and visit attacker-controlled page; no special privileges required.
Key dates
External resources
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