CVE-2021-23820

Public Exploit
Prototype Pollution

Description

This affects all versions of package json-pointer. A type confusion vulnerability can lead to a bypass of CVE-2020-7709 when the pointer components are arrays.

Category

5.6
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.23%
Third-Party Advisory github.com Third-Party Advisory snyk.io Third-Party Advisory snyk.io
Affected: n/a json-pointer
Published at:
Updated at:

References

Link Tags
https://snyk.io/vuln/SNYK-JS-JSONPOINTER-1577287 patch mitigation exploit vdb entry third party advisory
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1910686 patch mitigation exploit vdb entry third party advisory
https://github.com/manuelstofer/json-pointer/blob/master/index.js%23L78 third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-23820?
CVE-2021-23820 has been scored as a medium severity vulnerability.
How to fix CVE-2021-23820?
To fix CVE-2021-23820, 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-2021-23820 being actively exploited in the wild?
It is possible that CVE-2021-23820 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-2021-23820?
CVE-2021-23820 affects n/a json-pointer.
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