HOMEVULNERABILITIESCVE-2018-3719
HIGH

CVE-2018-3719

CWE-471Published: June 7, 2018· Updated: Jun 17, 2026

8.8
CVSS v3.1

Official Description

mixin-deep node module before 1.3.1 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.

NVD Source

Technical Analysis

CVE-2018-3719 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

mixin-deep_project1 product(s)
mixin-deep
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/jonschlinkert/mixin-deep/commit/578b0bc5e74e14de9ef4975f504dc698796bdf9c
PATCHhttps://github.com/jonschlinkert/mixin-deep/commit/578b0bc5e74e14de9ef4975f504dc698796bdf9c
ADVISORYhttps://hackerone.com/reports/311236
ADVISORYhttps://hackerone.com/reports/311236

All References (4)

→
https://github.com/jonschlinkert/mixin-deep/commit/578b0bc5e74e14de9ef4975f504dc698796bdf9cPatch · Third Party Advisory
→
https://hackerone.com/reports/311236Exploit · Third Party Advisory
→
https://github.com/jonschlinkert/mixin-deep/commit/578b0bc5e74e14de9ef4975f504dc698796bdf9cPatch · Third Party Advisory
→
https://hackerone.com/reports/311236Exploit · Third Party Advisory

Quick Facts

CVE IDCVE-2018-3719
CVSS Score8.8 / 10
SeverityHIGH
WeaknessCWE-471
CISA KEVNo
Affected1 vendor(s)
PublishedJun 7, 2018

Related CVEs (CWE-471)

CVE-2020-8147
9.8
CVE-2020-8158
9.8
CVE-2018-3728
8.8
CVE-2018-3723
8.8
CVE-2018-3722
8.8
CVE-2018-3720
8.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-3719 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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