Medium severity4.3NVD Advisory· Published Jul 14, 2021· Updated Jun 17, 2026

CVE-2021-20747

Description

Improper authorization in handler for custom URL scheme vulnerability in Retty App for Android versions prior to 4.8.13 and Retty App for iOS versions prior to 4.11.14 allows a remote attacker to lead a user to access an arbitrary website via the vulnerable App.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Retty App/Retty Appllm-create
Range: <4.8.13 for Android, <4.11.14 for iOS
Retty Inc./Retty Appv5
Range: Retty App for Android versions prior to 4.8.13 and Retty App for iOS versions prior to 4.11.14

Patches

Vulnerability mechanics

References

drive.google.com/file/d/1PBYqIsK8QxEEhGJ4SEgpY7iZw3RTTDho/viewnvdThird Party Advisory
jvn.jp/en/jp/JVN26891339/index.htmlnvdThird Party Advisory

News mentions

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cvss	0.280
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000