Yahoo! Browser vulnerable to address bar spoofing


Yahoo! Browser contains an issue when opening a new window, which may result in the address bar being spoofed.

Keita Haga of keitahaga.com reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V2 Severity:
Base Metrics 4.3 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Low
  • Authentication: None
  • Confidentiality Impact: None
  • Integrity Impact: Partial
  • Availability Impact: None
Affected Products

Yahoo Japan Corporation
  • Yahoo! Browser v1.4.2 and earlier


This vulnerability could be leveraged to forge the contents of the address bar for conducting phishing attacks.

[Update the software]
Update to the latest version according to the information provided by the developer.

Vendor Information

Yahoo Japan Corporation
CWE (What is CWE?)

  1. No Mapping(CWE-Other) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2013-2307

  1. JVN : JVN#55074201
  2. National Vulnerability Database (NVD) : CVE-2013-2307
Revision History

  • [2013/04/26]
      Web page was published