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

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MEDIUM

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

Published Jan 9, 2019

6.1

MEDIUM

CVSS 3.0

EPSS 0.38%

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.

Affected products

Vendor Google Product Chrome Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <70.0.3538.67

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Google

Chrome

n/a

Version	Status	Constraints
unspecified	affected	<70.0.3538.67

Remediation

No remediation recorded yet.

Metrics

0.38% 0.00384

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00384

Score over time

2021–2026

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Percentile over time

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Table of values (9 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.38% (0.00384)	30.03th	v5 (v2026.06.15)
Sep 20, 2026	0.38% (0.00384)	32.32th	v5 (v2026.06.15)
Jul 20, 2024	0.10% (0.00102)	42.33th	v3 (v2023.03.01)
Jul 10, 2024	0.10% (0.00102)	42.31th	v3 (v2023.03.01)
Mar 7, 2023	0.10% (0.00102)	40.27th	v3 (v2023.03.01)
Mar 6, 2023	1.05% (0.01055)	52.13th	v2 (v2022.01.01)
Feb 4, 2022	1.05% (0.01055)	27.52th	v2 (v2022.01.01)
Feb 3, 2022	0.32% (0.00324)	2.86th	v5 (v2026.06.15)
Apr 14, 2021	0.32% (0.00324)	0.00th	v1