CVE-2013-4699: Yahoo Yafuoku!

Medium severity, CVSS 5.8. EPSS: 0.5% chance of exploitation in the next 30 days.

The Yahoo! Japan Yafuoku! application 4.3.0 and earlier for iOS and Android does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Affected products

• Yahoo Yafuoku!: up to and including 4.3.0

Published 2013-08-21. Last modified 2026-06-16.