CVE-2020-7743

Prototype Pollution

HIGH
7.3
CVSS Score
Published: October 13, 2020 at 09:15 AM UTC
Updated: June 17, 2026 at 03:25 AM UTC
1 product affected across 1 vendorMathjs

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Severity
HIGH7.3
Exploit prediction
EPSS 4%

Description

The package mathjs before 7.5.1 are vulnerable to Prototype Pollution via the deepExtend function that runs upon configuration updates.

Affected

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

v < 7.5.1
Affected range stops below 7.5.1, so it looks safe — our inference, not a vendor statement

References (6)

x_refsource_MISCExploitMitigationThird Party Advisory
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1017113
x_refsource_MISCExploitMitigationThird Party Advisory
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1017112
x_refsource_MISCExploitMitigationThird Party Advisory
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1017111
x_refsource_MISCExploitMitigationThird Party Advisory
https://snyk.io/vuln/SNYK-JS-MATHJS-1016401

CVSS

7.3HIGHsnyk
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-1321

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