CVE-2021-23807

Public Exploit

Prototype Pollution

Description

This affects the package jsonpointer before 5.0.0. A type confusion vulnerability can lead to a bypass of a previous Prototype Pollution fix when the pointer components are arrays.

References

Link	Tags
https://snyk.io/vuln/SNYK-JS-JSONPOINTER-1577288	patch mitigation exploit vdb entry third party advisory
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1910273	patch mitigation exploit vdb entry third party advisory
https://github.com/janl/node-jsonpointer/pull/51	third party advisory patch
https://github.com/janl/node-jsonpointer/commit/a0345f3550cd9c4d89f33b126390202b89510ad4	third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-23807?: CVE-2021-23807 has been scored as a medium severity vulnerability.
How to fix CVE-2021-23807?: To fix CVE-2021-23807, 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-2021-23807 being actively exploited in the wild?: It is possible that CVE-2021-23807 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-23807?: CVE-2021-23807 affects n/a jsonpointer.

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Description

Category

CWE-843 – Access of Resource Using Incompatible Type ('Type Confusion')

References

Frequently Asked Questions