How severe is CVE-2019-18413?

CVE-2019-18413 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2019-18413 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-18413?

CVE-2019-18413 affects Typestack Class-validator Project Typestack Class-validator. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-18413?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-18413 published?

CVE-2019-18413 was published on 2019-10-24 and last updated on 2026-06-17.

CVE-2019-18413

CVE-2019-18413 is a low-severity vulnerability in Typestack Class-validator Project Typestack Class-validator with a CVSS 3.x base score of 3.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Low (CVSS 3.x base score 3.7)
CVSS v2: 7.5
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Typestack Class-validator Project Typestack Class-validator
Published: 2019-10-24
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2019-18413?: 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.
How severe is CVE-2019-18413?: CVE-2019-18413 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2019-18413 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-18413?: CVE-2019-18413 affects Typestack Class-validator Project Typestack Class-validator. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-18413?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-18413 published?: CVE-2019-18413 was published on 2019-10-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:typestack_class-validator_project:typestack_class-validator:0.10.2:*:*:*:*:*:*:*

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