MEDIUM5.3
GHSA-6gp3-h3jj-prx4
Prototype pollution in class-transformer
Quick fix
GHSA-6gp3-h3jj-prx4 — class-transformer: upgrade to the fixed version with the command below.
npm install class-transformer@0.3.1Details
class-transformer through 0.2.3 is vulnerable to Prototype Pollution. The 'classToPlainFromExist' function could be tricked into adding or modifying properties of 'Object.prototype' using a '__proto__' payload.
Are you affected?
Enter the version of the package you're using.
Affected packages
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-7637[ADVISORY]
- https://github.com/typestack/class-transformer/commit/8f04eb9db02de708f1a20f6f2d2bb309b2fed01e[WEB]
- https://github.com/typestack/class-transformer[PACKAGE]
- https://github.com/typestack/class-transformer/blob/a650d9f490573443f62508bc063b857bcd5e2525/src/ClassTransformer.ts#L29-L31,[WEB]
- https://snyk.io/vuln/SNYK-JS-CLASSTRANSFORMER-564431[WEB]