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MEDIUM · 5.3

CVE-2020-7637

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 __pro...

Vulnerability 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.

CVSS Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE

Affected Products

VendorProductVersions
Class-Transformer ProjectClass-Transformer< 0.3.1

Related Weaknesses (CWE)

CWE-1321

References

FAQ

What is CVE-2020-7637?

CVE-2020-7637 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 __pro...

How severe is CVE-2020-7637?

CVE-2020-7637 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-7637?

Check the references section above for vendor advisories and patch information. Affected products include: Class-Transformer Project Class-Transformer.