Maroyaka Simple Board vulnerable to cross-site scripting


Maroyaka Simple Board provided by Maroyaka CGI is a CGI script for posting text into a website. Maroyaka Simple Board contains a persistent cross-site scripting vulnerability.

Shoji Baba reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

The developer originally stated there were no plans to further maintain the product at the time of publication on 2015/3/4 14:00. However, a fixed version was later released on 2015/3/4 22:00.
This advisory was revised on 2015/3/6 11:00.
CVSS Severity (What is CVSS?)

CVSS V2 Severity:
Base Metrics 5.0 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Low
  • Authentication: None
  • Confidentiality Impact: None
  • Integrity Impact: Partial
  • Availability Impact: None
Affected Products

  • Maroyaka Simple Board ver1.10 and earlier


An arbitrary script may be executed on the user's web browser.

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

CWE (What is CWE?)

  1. Cross-site Scripting(CWE-79) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2015-0891

  1. JVN : JVN#63687798
  2. National Vulnerability Database (NVD) : CVE-2015-0891
Revision History

  • [2015/03/04]
      Web page was published
      Overview was modified
      Affected Products : Product version was modified
      Solution was modified
      Vendor Information : Content was modified
      References : Content was added