baserCMS plugin Mail vulnerable to cross-site scripting


baserCMS provided by baserCMS User Group is an opensource content management system. baserCMS and bundled plugin Mail contain a stored cross-site scripting vulnerability.

Isao Takaesu of Mitsui Bussan Secure Directions, Inc. and Norihiko Hirukawa of FiveDrive Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 5.4 (Medium) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: Low
  • User Interaction: Required
  • Scope: Changed
  • Confidentiality Impact: Low
  • Integrity Impact: Low
  • Availability Impact: None
CVSS V2 Severity:
Base Metrics 4.0 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Low
  • Authentication: Single Instance
  • Confidentiality Impact: None
  • Integrity Impact: Partial
  • Availability Impact: None
Affected Products

baserCMS Users Community
  • baserCMS version 3.0.10 and earlier
  • baserCMS plugin Mail version 3.0.10 and earlier


A user in Administrative group may be tricked to insert an arbitrary script in an administration page. The stored script may be executed on the user's web browser when another user in Administrative group accesses the administration page.

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

baserCMS Users Community
CWE (What is CWE?)

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

  1. CVE-2016-4877

  1. JVN : JVN#92765814
  2. National Vulnerability Database (NVD) : CVE-2016-4877
Revision History

  • [2016/09/29]
      Web page was published
      References : Content was added