Verse-o-matic Cross-Site Request Forgery

The Verse-O-Matic WordPress plugin through 4.1.1 does not have any CSRF checks in place, allowing attackers to make logged in administrators do unwanted actions, such as add/edit/delete arbitrary verses and change the settings. Due to the lack of sanitisation in the settings and verses, this could also lead to Stored Cross-Site Scripting issues (2021-08-16, CVE-2021-24466)

The absence of Anti-CSRF tokens may lead to a Cross-Site Request Forgery attack that can result in executing a specific application action as another logged in user, e.g. steal their account by changing their email and password or silently adding a new admin user account when executed from the administrator account.

The attacker may copy one of your web application forms, e.g. email/password change form.

The webpage will contain a form with the exact set of fields as the original application but with input values already provided and the submit button replaced with a Javascript code causing auto-submission. When the page is accessed the form will be immediately submitted and page contents replaced with a valid content or a redirect to your original application.

One of your application users who is already logged in can be then tricked to navigate to such malicious page e.g. by clicking a link in a phishing email, and the pre-populated form content will be submitted to your application like it would be submitted by your user.