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Fencer Vulns
high 7.5

CVE-2023-21516 json

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

published 2023-05-26 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-25684

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 46%
public exploits
0
none known

Summary

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.

Patch / fix

  • Samsung Mobile Galaxy Store 4.5.49.8

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
21 mo ago

Exploit prediction

0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 3.1 9.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Affected products

  • Samsung Mobile Galaxy Store

Classification

Weakness
  • CWE-20 Improper Input Validation
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.