Cybozu Office vulnerable to information disclosure


Cybozu Office contains an information disclosure vulnerability.

Note that this vulnerability is different from JVN#28042424.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 4.3 (Medium) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
  • Confidentiality Impact: Low
  • Integrity Impact: None
  • Availability Impact: None
CVSS V2 Severity:
Base Metrics 2.6 (Low) [IPA Score]
  • Access Vector: Network
  • Access Complexity: High
  • Authentication: None
  • Confidentiality Impact: Partial
  • Integrity Impact: None
  • Availability Impact: None
Affected Products

Cybozu, Inc.
  • Cybozu Office 9.0.0 to 10.3


If a user views a malicious page while logged in, token used for cross-site request forgery (CSRF) protection may be disclosed. As a result, an attacker who obtains the CSRF token can perform further attacks.

[Update the Software]
Update to the latest version according to the information provided by the developer.
Vendor Information

Cybozu, Inc.
CWE (What is CWE?)

  1. Information Exposure(CWE-200) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2015-8487

  1. JVN : JVN#47296923
  2. National Vulnerability Database (NVD) : CVE-2015-8487
Revision History

  • [2016/02/15]
      Web page was published
      References : Content was added