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CVE-2018-3719

HIGH
8.8
CVSS Score
Published: June 7, 2018 at 02:00 AM UTC
Updated: June 17, 2026 at 01:57 AM UTC
1 product affected across 1 vendorMixin Deep

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Severity
HIGH8.8
Exploit prediction
EPSS 2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Mixin Deep· Mixin Deep Projectnpm
95%
v < 1.3.1
Affected range stops below 1.3.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/jonschlinkert/mixin-deep/commit/578b0bc5e74e14de9ef4975f504dc698796bdf9c
x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://hackerone.com/reports/311236

CVSS

8.8HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-471CWE-20

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