NEX-Forms 9.2.1 - 9.2.5 - Unauthenticated Arbitrary Form Entry Modification via 'nf_set_entry_update_id' Parameter

The NEX-Forms WordPress plugin before 9.3.1 does not perform any authorization, ownership or request-validation checks before updating stored form entries, allowing unauthenticated attackers to overwrite, permanently erase, reassign or append to any previously submitted form entry by referencing its sequential identifier.