GHSA-6gp3-h3jj-prx4
Prototype pollution in class-transformer
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | class-transformer | < 0.3.1 | 0.3.1 |
Details
As written in the advisory (Markdown source, shown as plain text).
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.
References
External links from the advisory. They lead to third-party sites.
- https://nvd.nist.gov/vuln/detail/CVE-2020-7637
- https://github.com/typestack/class-transformer/commit/8f04eb9db02de708f1a20f6f2d2bb309b2fed01e
- https://github.com/typestack/class-transformer
- https://github.com/typestack/class-transformer/blob/a650d9f490573443f62508bc063b857bcd5e2525/src/ClassTransformer.ts#L29-L31,
- https://snyk.io/vuln/SNYK-JS-CLASSTRANSFORMER-564431