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CVE-2023-40530

MEDIUM
4.7
CVSS Score
Published: August 25, 2023 at 03:47 AM UTC
Updated: June 17, 2026 at 06:18 AM UTC
1 product affected across 1 vendorSkylark

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Severity
MEDIUM4.7
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

Improper authorization in handler for custom URL scheme issue in 'Skylark' App for Android 6.2.13 and earlier and 'Skylark' App for iOS 6.2.13 and earlier allows an attacker to lead a user to access an arbitrary website via another application installed on the user's device.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Skylark· Skylark
95%
v ≤ 6.2.13

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

Product
Source: [email protected]
https://apps.apple.com/jp/app/%E3%81%99%E3%81%8B%E3%81%84%E3%82%89%E3%83%BC%E3%81%8F%E3%82%A2%E3%83%97%E3%83%AA/id906930478
Third Party Advisory
Source: [email protected]
https://jvn.jp/en/jp/JVN03447226/
Product
Source: [email protected]
https://play.google.com/store/apps/details?id=jp.co.skylark.app.gusto

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.7MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-862

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