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 LH Signing plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.83. This is due to missing or incorrect nonce validation on the plugin_options function. This makes it possible for unauthenticated attackers to modify plugin settings 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
LH Signing versions 2.83 and earlier are vulnerable to cross-site request forgery (CSRF) attacks. An attacker can craft a malicious webpage that, when visited by a logged-in user, performs unwanted actions within the LH Signing application without the user's knowledge or consent. The vulnerability requires user interaction—the victim must visit the attacker's page while authenticated.
What an attacker can do
Perform unwanted actions in LH Signing on behalf of a logged-in user without their knowledge.
Potential impact on your site
Users' LH Signing accounts can be manipulated to perform unintended operations if they visit malicious sites while logged in.
Conditions required to exploit
User must be logged into LH Signing and visit an attacker-controlled webpage.
Key dates
External resources
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