The Login with phone number WordPress plugin before 1.3.7 includes a file delete.php with no form of authentication or authorization checks placed in the plugin directory, allowing unauthenticated user to remotely delete the plugin files leading to a potential Denial of Service situation.

The Login with phone number WordPress plugin before 1.3.8 does not sanitise and escape plugin settings which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.

The Login with phone number plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.5.6. This is due to missing nonce validation on the 'lwp_update_password_action' function. This makes it possible for unauthenticated attackers to change user password via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Hamid Alinia Login with phone number login-with-phone-number.This issue affects Login with phone number: from n/a through <= 1.7.35.