CVE-2023-21516

Severity: critical (CVSS 9.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-05-26 · updated 2026-06-17
Weakness: CWE-20

Description

XSS vulnerability from InstantPlay in Galaxy Store prior to version 4.5.49.8 allows attackers to execute javascript API to install APK from Galaxy Store.

Affected products

Samsung Mobile Galaxy Store: before 4.5.49.8 — fixed in 4.5.49.8

How to fix

Upgrade to a fixed version: Samsung Mobile Galaxy Store 4.5.49.8. Check the vendor advisory for mitigations.

References

https://security.samsungmobile.com/serviceWeb.smsb?year=2023&month=01
https://security.samsungmobile.com/serviceWeb.smsb?year=2023&month=01

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