What’s Vulnerable › Vulnerabilities

CVE-2024-27440

• Severity: medium (CVSS 4.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-03-13 · updated 2026-06-17
• Weakness: CWE-295

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 products

• Toyoko Inn: before 1.13.0 — fixed in 1.13.0

How to fix

Upgrade to a fixed version: Toyoko Inn 1.13.0. Check the vendor advisory for mitigations.

References

• 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
• https://jvn.jp/en/jp/JVN52919306/
• https://play.google.com/store/apps/details?id=com.toyoko_inn.toyokoandroid
• 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
• https://jvn.jp/en/jp/JVN52919306/
• https://play.google.com/store/apps/details?id=com.toyoko_inn.toyokoandroid

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