NPM: yayson: Prototype pollution in Store/LegacyStore deserialization

NPM: yayson: Prototype pollution in Store/LegacyStore deserialization vulnerability discovered by ? in WordPress Npm yayson versions = 4.2.0...

yayson: Prototype pollution in Store/LegacyStore deserialization

Summary Store/LegacyStore key internal lookup tables by the type, id, and relationship names from a JSON:API document. Because these were plain objects, a document with type: "proto" writes onto Object.prototype, polluting every object in the process. Severity Suggested CVSS v3.1...