The Squaretype WordPress theme before 3.0.4 allows unauthenticated users to manipulate the query_vars used to retrieve the posts to display in one of its REST endpoint, without any validation.
CVSS 3.1MEDIUM 5.3·Network·No auth·No interaction·EPSS 0.01168·Published 2021-11-08·Fixed in 3.0.4CWE-639