CVE-2020-7637

Public Exploit

Description

class-transformer before 0.3.1 allow attackers to perform Prototype Pollution. The classToPlainFromExist function could be tricked into adding or modifying properties of Object.prototype using a __proto__ payload.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.32%
Third-Party Advisory github.com Third-Party Advisory snyk.io
Affected: n/a class-transformer
Published at:
Updated at:

References

Link Tags
https://github.com/typestack/class-transformer/commit/8f04eb9db02de708f1a20f6f2d2bb309b2fed01e third party advisory patch
https://snyk.io/vuln/SNYK-JS-CLASSTRANSFORMER-564431 third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2020-7637?
CVE-2020-7637 has been scored as a medium severity vulnerability.
How to fix CVE-2020-7637?
To fix CVE-2020-7637, 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-2020-7637 being actively exploited in the wild?
It is possible that CVE-2020-7637 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-2020-7637?
CVE-2020-7637 affects n/a class-transformer.
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