How severe is CVE-2018-20071?

CVE-2018-20071 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2018-20071 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-20071?

CVE-2018-20071 affects Google Chrome. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-20071?

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

When was CVE-2018-20071 published?

CVE-2018-20071 was published on 2019-01-09 and last updated on 2026-06-17.

CVE-2018-20071

CVE-2018-20071 is a medium-severity vulnerability in Google Chrome with a CVSS 3.x base score of 6.1. 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: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Google Chrome
Published: 2019-01-09
Last modified: 2026-06-17

Description

Insufficiently strict origin checks during JIT payment app installation in Payments in Google Chrome prior to 70.0.3538.67 allowed a remote attacker to install a service worker for a domain that can host attacker controled files via a crafted HTML page.

Frequently asked questions

What is CVE-2018-20071?: Insufficiently strict origin checks during JIT payment app installation in Payments in Google Chrome prior to 70.0.3538.67 allowed a remote attacker to install a service worker for a domain that can host attacker controled files via a crafted HTML page.
How severe is CVE-2018-20071?: CVE-2018-20071 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2018-20071 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-20071?: CVE-2018-20071 affects Google Chrome. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-20071?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-20071 published?: CVE-2018-20071 was published on 2019-01-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

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