GitHub Advisoryadvisory · npm

GHSA-fj58-h2fr-3pp2 SQL Injection and Cross-site Scripting in class-validator

CRITICAL Published 2021-10-12 Modified 2023-01-11 Official page ↗
Aliases
CVE-2019-18413
Ecosystem
npm
Packages
class-validator
Severity
Critical
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-79, CWE-89
Reviewed
2021-10-08

Affected packages

• npm class-validator: < 0.14.0 → fixed in 0.14.0

Description

In TypeStack class-validator, `validate()` input validation can be bypassed because certain internal attributes can be overwritten via a conflicting name. Even though there is an optional `forbidUnknownValues` parameter that can be used to reduce the risk of this bypass, this option is not documented and thus most developers configure input validation in the vulnerable default manner. With this vulnerability, attackers can launch SQL Injection or XSS attacks by injecting arbitrary malicious input. The default settings for `forbidUnknownValues` has been changed to `true` in 0.14.0. NOTE: a software maintainer agrees with the "is not documented" finding but suggests that much of the responsibility for the risk lies in a different product.

Related

Alias · CVE (1)

  • CVE-2019-18413 In TypeStack class-validator 0.10.2, validate() input validation can be bypassed because certain internal attributes can be overwritten via… vulnerability

Weakness · CWE (2)

  • CWE-79 Improper Neutralization of Input During Web Page Generation weakness
  • CWE-89 Improper Neutralization of Special Elements used in an SQL Command weakness

References