Missing Authorization vulnerability in Fetch Designs Sign-up Sheets allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Sign-up Sheets: from n/a through 2.2.12.

The Freemius SDK, as used by hundreds of WordPress plugin and theme developers, was vulnerable to Cross-Site Request Forgery and Information disclosure due to missing capability checks and nonce protection on the _get_debug_log, _get_db_option, and the _set_db_option functions in versions up to, and including 2.4.2. Any WordPress plugin or theme running a version of Freemius less than 2.4.3 is vulnerable.

The Sign-up Sheets WordPress plugin before 2.2.13 does not escape some generated URLs, as well as the $_SERVER['REQUEST_URI'] parameter before outputting them back in attributes, which could lead to Reflected Cross-Site Scripting.

Cross-Site Request Forgery (CSRF) vulnerability in Fetch Designs Sign-up Sheets.This issue affects Sign-up Sheets: from n/a through 2.2.11.1.

Cross-Site Request Forgery (CSRF) vulnerability in Fetch Designs Sign-up Sheets plugin <= 2.2.8 versions.

The Sign-up Sheets WordPress plugin before 1.0.14 does not not sanitise or validate the Sheet title when generating the CSV to export, which could lead to a CSV injection issue

The Sign-up Sheets WordPress plugin before 1.0.14 did not sanitise or escape some of its fields when creating a new sheet, allowing high privilege users to add JavaScript in them, leading to a Stored Cross-Site Scripting issue. The payloads will be triggered when viewing the 'All Sheets' page in the admin dashboard