The Giveaways and Contests by RafflePress WordPress plugin before 1.12.27 does not properly validate a giveaway's parent page URL before saving it and later redirecting visitors to it, allowing unauthenticated attackers to make the site's own giveaway confirmation and referral links redirect visitors to an arbitrary external site.

The Giveaways and Contests by RafflePress WordPress plugin before 1.12.27 does not remove the reCAPTCHA secret key from the giveaway settings it embeds in public giveaway pages, allowing unauthenticated visitors to retrieve the secret key of any active giveaway that has reCAPTCHA configured.

Cross-Site Request Forgery (CSRF) vulnerability in Syed Balkhi Giveaways and Contests by RafflePress rafflepress allows Cross Site Request Forgery.This issue affects Giveaways and Contests by RafflePress: from n/a through <= 1.12.20.

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 multiple social media username parameters in all versions up to, and including, 1.12.19 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 1.12.17 does not sanitise 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 unfilteredhtml 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 ‘parenturl’ 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.