How severe is CVE-2019-10795?

CVE-2019-10795 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2019-10795 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-10795?

CVE-2019-10795 affects Undefsafe Project Undefsafe. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-10795?

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

When was CVE-2019-10795 published?

CVE-2019-10795 was published on 2020-02-18 and last updated on 2026-06-17.

CVE-2019-10795

CVE-2019-10795 is a medium-severity vulnerability in Undefsafe Project Undefsafe with a CVSS 3.x base score of 6.3. 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-74.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
CVSS v2: 6.5
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-74
Affected product: Undefsafe Project Undefsafe
Published: 2020-02-18
Last modified: 2026-06-17

Description

undefsafe before 2.0.3 is vulnerable to Prototype Pollution. The 'a' function could be tricked into adding or modifying properties of Object.prototype using a __proto__ payload.

Frequently asked questions

What is CVE-2019-10795?: undefsafe before 2.0.3 is vulnerable to Prototype Pollution. The 'a' function could be tricked into adding or modifying properties of Object.prototype using a __proto__ payload.
How severe is CVE-2019-10795?: CVE-2019-10795 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2019-10795 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-10795?: CVE-2019-10795 affects Undefsafe Project Undefsafe. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-10795?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-10795 published?: CVE-2019-10795 was published on 2020-02-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:undefsafe_project:undefsafe:*:*:*:*:*:node.js:*:*

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