The User Registration – Custom Registration Form, Login Form, and User Profile WordPress Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'Display Name' parameter in all versions up to, and including, 3.1.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This vulnerability requires social engineering to successfully exploit, and the impact would be very limited due to the attacker requiring a user to login as the user with the injected payload for execution.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WPEverest Everest Forms – Build Contact Forms, Surveys, Polls, Application Forms, and more with Ease! allows Stored XSS.This issue affects Everest Forms – Build Contact Forms, Surveys, Polls, Application Forms, and more with Ease!: from n/a through 2.0.4.1.
The User Registration WordPress plugin before 3.0.4.2 does not sanitize and escape some of its settings, which could allow high-privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).
The User Registration plugin for WordPress is vulnerable to arbitrary file uploads due to a hardcoded encryption key and missing file type validation on the 'ur_upload_profile_pic' function in versions up to, and including, 3.0.2. This makes it possible for authenticated attackers with subscriber-level capabilities or above to upload arbitrary files on the affected site's server which may make remote code execution possible. This was partially patched in version 3.0.2 and fully patched in version 3.0.2.1.
The User Registration plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 3.0.1 via deserialization of untrusted input from the 'profile-pic-url' parameter. This allows authenticated attackers, with subscriber-level permissions and above, to inject a PHP Object. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.
The User Registration WordPress plugin before 2.2.4.1 does not properly restrict the files to be uploaded via an AJAX action available to both unauthenticated and authenticated users, which could allow unauthenticated users to upload PHP files for example.
The Contact Forms - Drag & Drop Contact Form Builder WordPress plugin through 1.0.5 allows high privilege users to download arbitrary files from the web server via a path traversal attack
The Contact Form, Drag and Drop Form Builder for WordPress plugin before 1.8.0 does not escape the status parameter before outputting it back in an attribute, leading to a Reflected Cross-Site Scripting issue