CVE-2024-45203

Name: CVE-2024-45203
Creator: NVD / NIST
Published: 2024-09-09T07:15:17.03+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.28%

Last modified Jun 17, 2026

CVE-2024-45203 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. Improper authorization in handler for custom URL scheme issue in "@cosme" App for Android versions prior 5.69.0 and "@cosme" App for iOS versions prior to 6.74.0 allows an attacker to lead a user to access an arbitrary website via the vulnerable App. As a result, the user may become a victim of a phishing attack.. EPSS estimates a 0.28% chance of exploitation in the next 30 days.

Description

Improper authorization in handler for custom URL scheme issue in "@cosme" App for Android versions prior 5.69.0 and "@cosme" App for iOS versions prior to 6.74.0 allows an attacker to lead a user to access an arbitrary website via the vulnerable App. As a result, the user may become a victim of a phishing attack.

Metrics

CVSS 3.1

4.3/10

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

EPSS Probability

0.28%

19.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-939

Affected Software

Vendor	Product	Versions
Istyle	\@Cosme	< 5.69.0
Istyle	\@Cosme	<= 6.74.0

References

https://jvn.jp/en/jp/JVN81570776/Third Party Advisory

Timeline

Published: Sep 9, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2024-45203?

How severe is CVE-2024-45203?

CVE-2024-45203 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.28% probability of exploitation in the next 30 days.

How do I fix CVE-2024-45203?

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-2024-45203?

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

Scan your code now

Source: NVD / NIST