CVE-2018-3723: Improper Input Validation

July 26, 2018 (updated January 8, 2021)

defaults-deep node module 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.

References

github.com/advisories/GHSA-cqp5-m4pq-gfgp
github.com/jonschlinkert/defaults-deep/commit/c873f341327ad885ff4d0f23b3d3bca31b0343e5
hackerone.com/reports/310514
nvd.nist.gov/vuln/detail/CVE-2018-3723
www.npmjs.com/advisories/581

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