CVE-2021-20733 json
Improper authorization in handler for custom URL scheme vulnerability in あすけんダイエット (asken diet) for Android versions from v.3.0.0 to v.4.2.…
published 2021-06-22 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-8147
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 57%
- public exploits
- 0
- none known
Summary
Improper authorization in handler for custom URL scheme vulnerability in あすけんダイエット (asken diet) for Android versions from v.3.0.0 to v.4.2.x allows a remote attacker to lead a user to access an arbitrary website via the vulnerable App.
Patch / fix
- asken asken 4.3.0
Exploit prediction
0.82% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 5.8 | AV:N/AC:M/Au:N/C:P/I:P/A:N |
Affected products
- asken Inc. あすけんダイエット (asken diet) for Android
Classification
- Weakness
-
- CWE-862 Missing Authorization
References
-
asken.jp
/s/login/?to=/information
permissions-required, vendor-advisory
-
jvn.jp
/en/jp/JVN38034268/index.html
third-party-advisory
Sources
- CVE List CVE-2021-20733
- NVD CVE-2021-20733
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