Giveaways and Contests by RafflePress vulnerabilities

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.

The WordPress plugin "Giveaways and Contests by RafflePress" is vulnerable to Cross-Site Request Forgery (CSRF) in all versions up to and including 1.12.20. Missing or incorrect nonce validation allows unauthenticated attackers to perform actions on behalf of an administrator.