TI-2019-13403 Aliases CVE-2019-18413 GHSA-fj58-h2fr-3pp2

In TypeStack class-validator 0.10.2, validate() input validation can be bypassed because…

MEDIUM 46CWE-79Published 2019-10-24 · Updated 2024-08-05

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Cross-site scripting, SQL injection
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-79 and CWE-89.

Summary

In TypeStack class-validator 0.10.2, 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. 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.

Why it matters now

EPSS 0.01987 80th percentileScored 2026-11-07

Public exploit Yes 2 exploit referencesTagged by NVD

Fix Fixed class-validator (npm): 0.14.0

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA
—	class-validator (npm)	before 0.14.0	0.14.0	Patch available	GHSA-fj58-h2fr-3pp2

— Vendor— Affected all versions Fixed in — No fix listed CNA
class-validator (npm) Vendor— Affected before 0.14.0 Fixed in 0.14.0 Patch available GHSA-fj58-h2fr-3pp2

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:typestack_class-validator_project:typestack_class-validator:0.10.2:::::::*	0.10.2	Vulnerable	Typestack Class-validator Project

cpe:2.3:a:typestack_class-validator_project:typestack_class-validator:0.10.2:*:*:*:*:*:*:* Versions 0.10.2 Vulnerable ·Typestack Class-validator Project

Remediation

Fix · GHSA-fj58-h2fr-3pp2 class-validator (npm) Fixed in 0.14.0 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2019-18413
2026-10-03 Alias added: GHSA-fj58-h2fr-3pp2

References

Exploit 2

Advisory 3

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences