How severe is CVE-2019-10805?

CVE-2019-10805 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2019-10805 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-10805?

CVE-2019-10805 affects Sideralis Valib.js. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-10805?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-10805 published?

CVE-2019-10805 was published on 2020-02-28 and last updated on 2026-06-17.

CVE-2019-10805

CVE-2019-10805 is a high-severity vulnerability in Sideralis Valib.js with a CVSS 3.x base score of 7.5. 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-668.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-668
Affected product: Sideralis Valib.js
Published: 2020-02-28
Last modified: 2026-06-17

Description

valib through 2.0.0 allows Internal Property Tampering. A maliciously crafted JavaScript object can bypass several inspection functions provided by valib. Valib uses a built-in function (hasOwnProperty) from the unsafe user-input to examine an object. It is possible for a crafted payload to overwrite this function to manipulate the inspection results to bypass security checks.

Frequently asked questions

What is CVE-2019-10805?: valib through 2.0.0 allows Internal Property Tampering. A maliciously crafted JavaScript object can bypass several inspection functions provided by valib. Valib uses a built-in function (hasOwnProperty) from the unsafe user-input to examine an object. It is possible for a crafted payload to overwrite this function to manipulate the inspection results to bypass security checks.
How severe is CVE-2019-10805?: CVE-2019-10805 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2019-10805 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-10805?: CVE-2019-10805 affects Sideralis Valib.js. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-10805?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-10805 published?: CVE-2019-10805 was published on 2020-02-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sideralis:valib.js:*:*:*:*:*:node.js:*:*

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