The Giveaways and Contests by RafflePress WordPress plugin before 1.12.16 does not sanitise and escape some of its Giveaways settings, which could allow high privilege users such as editor and above to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

The Giveaways and Contests by RafflePress WordPress plugin before 1.12.14 does not sanitise and escape some parameters, which could allow users with a role as low as editor to perform Cross-Site Scripting attacks

Authentication Bypass by Spoofing vulnerability in RafflePress Giveaways and Contests allows Functionality Bypass.This issue affects Giveaways and Contests: from n/a through 1.12.7.

The Giveaways and Contests by RafflePress – Get More Website Traffic, Email Subscribers, and Social Followers plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘parent_url’ parameter in all versions up to, and including, 1.12.5 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.

The Giveaways and Contests by RafflePress WordPress plugin before 1.11.3 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.