CVE-2021-20728

5.3 mediumEPSS 1.0%

Medium (5.3) in nttr goo blog. EPSS 1.0% chance of exploitation in the next 30 days.

Improper access control vulnerability in goo blog App for Android ver.1.2.25 and earlier and for iOS ver.1.3.3 and earlier allows a remote attacker to lead a user to access an arbitrary website via the vulnerable App.

Severity

CVSS 3.1

5.3 medium

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

EPSS: 1.0% chance of exploitation in the next 30 days; higher than 62% of CVEs (scores of 2026-10-31)
Published: 2021-06-09
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

nttr:goo_blog

References

https://blog.goo.ne.jp/staffblog/e/d84a6b220222462094728301782885db
https://jvn.jp/en/jp/JVN91691168/index.html
https://blog.goo.ne.jp/staffblog/e/d84a6b220222462094728301782885db
https://jvn.jp/en/jp/JVN91691168/index.html

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