restrict additionalProperties in CVSS 4.0 object to prevent typos in fields.

Author: chandanbn

schema/v5.0/docs/CVE_JSON_5.1_bundled.json

@@ -1555,7 +1555,8 @@
               "vectorString",
               "baseScore",
               "baseSeverity"
-            ]
+            ],
+            "additionalProperties": false
           },
           "cvssV3_1": {
             "$schema": "http://json-schema.org/draft-07/schema#",

schema/v5.0/docs/index.html

@@ -383,5 +383,6 @@
           ]
       }
   ],
-  "required": [ "version", "vectorString", "baseScore", "baseSeverity" ]
+  "required": [ "version", "vectorString", "baseScore", "baseSeverity" ],
+  "additionalProperties": false
 }