WordPress plugin "MTS Simple Booking C" vulnerable to cross-site scripting


The WordPress plugin "MTS Simple Booking C" provided by MT Systems Co., Ltd. contains a stored cross-site scripting vulnerability (CWE-79).

Daichi Takaki of Cryptography Laboratory,Department of Information and Communication Engineering,Tokyo Denki University 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 6.1 (Medium) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Changed
  • Confidentiality Impact: Low
  • Integrity Impact: Low
  • Availability Impact: None
CVSS V2 Severity:
Base Metrics 4.3 (Medium) [IPA Score]
  • Access Vector: Local
  • Access Complexity: Medium
  • Authentication: None
  • Confidentiality Impact: None
  • Integrity Impact: Partial
  • Availability Impact: None
Affected Products

MT Systems Co., Ltd.
  • MTS Simple Booking C
  • MTS Simple Booking Business version 1.28.0 and earlier


An arbitrary script may be executed on the web browser of a user who logged-in as an administrator.

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

MT Systems Co., Ltd.
CWE (What is CWE?)

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

  1. CVE-2018-0513

  1. JVN : JVN#99312352
  2. National Vulnerability Database (NVD) : CVE-2018-0513
Revision History

  • [2018/02/02]
      Web page was published
  • [2018/04/11]
      References : Content was added