CVE-2019-19507 Information

Description

In jpv (aka Json Pattern Validator) before 2.1.1 compareCommon() can be bypassed because certain internal attributes can be overwritten via a conflicting name as demonstrated by ‘constructor’: ’name’:‘Array’. This affects validate(). Hence a crafted payload can overwrite this builtin attribute to manipulate the type detection result.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Reference

https://github.com/manvel-khnkoyan/jpv/issues/6 https://www.npmjs.com/package/jpv

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

LOW

Base Score

NONE

Base Severity

5.3