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CVE-2024-27440

MEDIUM
4.8
CVSS Score
Published: March 13, 2024 at 05:40 AM UTC
Updated: June 17, 2026 at 07:19 AM UTC
2 products affected across 2 vendorsToyoko Inn official AppToyoko Inn Official App

Using Toyoko Inn official App for iOS by Toyoko Inn IT Solution Co., Ltd.?

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Severity
MEDIUM4.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

The Toyoko Inn official App for iOS versions prior to 1.13.0 and Toyoko Inn official App for Android versions prior 1.3.14 don't properly verify server certificates, which allows a man-in-the-middle attacker to spoof servers and obtain sensitive information via a crafted certificate.

Affected

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

Toyoko Inn official App· Toyoko Inn IT Solution
60%
v < 1.13.0prior 1.3.14
Affected range stops below 1.13.0, so it looks safe — our inference, not a vendor statement
Toyoko Inn Official App· Toyoko Inn
60%
v < 1.13.0
Affected range stops below 1.13.0, so it looks safe — our inference, not a vendor statement

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)

Source: [email protected]
https://apps.apple.com/jp/app/%E3%83%9B%E3%83%86%E3%83%AB%E6%9D%B1%E6%A8%AAinn-%E6%9D%B1%E6%A8%AA%E3%82%A4%E3%83%B3-%E5%85%AC%E5%BC%8F%E3%82%A2%E3%83%97%E3%83%AA/id1439388270
Source: [email protected]
https://jvn.jp/en/jp/JVN52919306/
Source: [email protected]
https://play.google.com/store/apps/details?id=com.toyoko_inn.toyokoandroid

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

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

CVSS

4.8MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-295

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