Vulnerability · Published Apr 28, 2020 · Assigned by snyk

CVE-2020-7644

High 8.1

In plain English

A high-severity security flaw in fun-map. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 69% of all known vulnerabilities).

Severity (CVSS NVD)8.1High

Exploit odds (30 days)1.2%top 31.3% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

fun-map through 3.3.1 is vulnerable to Prototype Pollution. The function assocInM could be tricked into adding or modifying properties of 'Object.prototype' using a '__proto__' payload.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	fun-map	no fix listed	GHSA-p33m-7w7f-gmj8

Affected products (as reported)

Vendor	Product	Versions
n/a	fun-map	All versions including 3.3.1

References

https://github.com/nathan7/fun-map/blob/master/index.js#L137%2C x_refsource_MISC
https://snyk.io/vuln/SNYK-JS-FUNMAP-564436 x_refsource_MISC