{"cve":"CVE-2018-3723","nvd":{"published":"2018-06-07T02:29:08.410","modified":"2026-06-17T01:57:43.567","status":"Modified","description":"defaults-deep node module before 0.2.4 suffers from a Modification of Assumed-Immutable Data (MAID) vulnerability, which allows a malicious user to modify the prototype of \"Object\" via __proto__, causing the addition or modification of an existing property that will exist on all objects.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-20","CWE-471"],"references":["https://github.com/jonschlinkert/defaults-deep/commit/c873f341327ad885ff4d0f23b3d3bca31b0343e5","https://hackerone.com/reports/310514","https://github.com/jonschlinkert/defaults-deep/commit/c873f341327ad885ff4d0f23b3d3bca31b0343e5","https://hackerone.com/reports/310514"],"products":["defaults-deep_project:defaults-deep"],"source":"nvd","synced_at":"2026-10-19T20:50:40.212176939+00:00"},"epss":{"cve":"CVE-2018-3723","score":0.02004,"percentile":0.80802,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-cqp5-m4pq-gfgp","url":"https://osv.dev/vulnerability/GHSA-cqp5-m4pq-gfgp","summary":"Prototype Pollution in defaults-deep","modified":"2023-11-08T04:00:17.304929Z","packages":[{"ecosystem":"npm","name":"defaults-deep","purl":"pkg:npm/defaults-deep","ranges":["<0.2.4"],"fixed":["0.2.4"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}