Craft CMS from 5.0.0 before 5.11.2 contains an authorization bypass vulnerability that allows unauthenticated attackers to read content from sites outside a GraphQL schema's Sites scope. Attackers can send a POST request to /actions/graphql/api selecting the localized field without the siteId argument to disclose out-of-scope site content.

Craft CMS from 5.0.0 before 5.11.2 contains an authorization bypass vulnerability that allows unauthenticated attackers to read content from sites outside a GraphQL schema's Sites scope. Attackers can send a POST request to /actions/graphql/api selecting the localized field without the siteId argument to disclose out-of-scope site content.