CVE-2020-5604

Name: CVE-2020-5604
Creator: NVD / NIST
Published: 2020-07-09T02:15:10.527+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 2.00%

Last modified Jun 17, 2026

CVE-2020-5604 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. Android App 'Mercari' (Japan version) prior to version 3.52.0 allows arbitrary method execution of a Java object by a remote attacker via a Man-In-The-Middle attack by using Java Reflection API of JavaScript code on WebView.. EPSS estimates a 2.00% chance of exploitation in the next 30 days.

Description

Android App 'Mercari' (Japan version) prior to version 3.52.0 allows arbitrary method execution of a Java object by a remote attacker via a Man-In-The-Middle attack by using Java Reflection API of JavaScript code on WebView.

Metrics

CVSS 3.1

8.1/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

2.00%

78.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Mercari	Mercari	< 3.52.0

References

https://jvn.jp/en/jp/JVN93167107/index.htmlThird Party Advisory
https://jvn.jp/en/jp/JVN93167107/index.htmlThird Party Advisory

Timeline

Published: Jul 9, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-5604?

How severe is CVE-2020-5604?

CVE-2020-5604 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 2.00% probability of exploitation in the next 30 days.

How do I fix CVE-2020-5604?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-5604?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST