CVE-2020-7637: Improper Input Validation

April 6, 2020 (updated July 21, 2021)

class-transformer is vulnerable to Prototype Pollution. The classToPlainFromExist function could be tricked into adding or modifying properties of Object.prototype using a __proto__ payload.

References

nvd.nist.gov/vuln/detail/CVE-2020-7637

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