CVE-2020-7743 Prototype Pollution

High 7.3 Published Updated

Prototype pollution in mathjs allows attackers to modify object prototypes, potentially leading to code execution or security bypasses.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2020-7743?

CVE-2020-7743 is a high-severity vulnerability in mathjs, published on 13 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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

Weakness: CWE-1321

Which versions are affected by CVE-2020-7743?

2 open source packages ship an affected version, including mathjs. It affects 1 product.

PackageAffectedFixed in
mathjs npmAll versions7.5.1
mathjs npmAll versions7.5.1

Products include Mathjs Mathjs.

How do I fix CVE-2020-7743?

Upgrade mathjs to 7.5.1 or later.

Is CVE-2020-7743 being exploited?

There is no known exploitation of CVE-2020-7743 in the wild and no public exploit code.

Sources

Also known as GHSA-x2fc-mxcx-w4mf.

Is CVE-2020-7743 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free