Add SB Curated (copied from the smartbugs repository).

dataset/access_control/proxy.sol

@@ -0,0 +1,22 @@
+/*
+ * @source: https://smartcontractsecurity.github.io/SWC-registry/docs/SWC-112#proxysol
+ * @author: -
+ * @vulnerable_at_lines: 19
+ */
+
+pragma solidity ^0.4.24;
+
+contract Proxy {
+
+  address owner;
+
+  constructor() public {
+    owner = msg.sender;
+  }
+
+  function forward(address callee, bytes _data) public {
+    // <yes> <report> ACCESS_CONTROL
+    require(callee.delegatecall(_data)); //Use delegatecall with caution and make sure to never call into untrusted contracts
+  }
+
+}