CVE-2020-7766

Public Exploit
Prototype Pollution

Description

This affects all versions of package json-ptr. The issue occurs in the set operation (https://flitbit.github.io/json-ptr/classes/_src_pointer_.jsonpointer.htmlset) when the force flag is set to true. The function recursively set the property in the target object, however it does not properly check the key being set, leading to a prototype pollution.

Category

7.3
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.06% Top 25%
Third-Party Advisory snyk.io Third-Party Advisory snyk.io
Affected: n/a json-ptr
Published at:
Updated at:

References

Link Tags
https://snyk.io/vuln/SNYK-JS-JSONPTR-1016939 third party advisory exploit
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1038396 third party advisory exploit
https://github.com/flitbit/json-ptr/blob/master/src/util.ts%23L174 broken link

Frequently Asked Questions

What is the severity of CVE-2020-7766?
CVE-2020-7766 has been scored as a high severity vulnerability.
How to fix CVE-2020-7766?
To fix CVE-2020-7766, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-7766 being actively exploited in the wild?
It is possible that CVE-2020-7766 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-7766?
CVE-2020-7766 affects n/a json-ptr.
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