CVE-2023-21434 Cross-site scripting in Galaxy Store

Medium 6.2 Published Updated

Local attackers can execute JavaScript in the Samsung Galaxy Store app by launching a malicious web page due to improper input validation.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2023-21434?

CVE-2023-21434 is a medium-severity cross-site scripting vulnerability in Samsung Mobile Galaxy Store, published on 9 Feb 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Improper input validation vulnerability in Galaxy Store prior to version 4.5.49.8 allows local attackers to execute JavaScript by launching a web page.

Weakness: CWE-79, CWE-20

Which versions are affected by CVE-2023-21434?

It affects 1 product.

Products include Samsung Galaxy Store.

How do I fix CVE-2023-21434?

No fix has been published for CVE-2023-21434 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2023-21434 being exploited?

There is no known exploitation of CVE-2023-21434 in the wild and no public exploit code.

Sources

Also known as GHSA-m5xh-w97f-qrvv.

Is CVE-2023-21434 in your software?

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