[Japanese]

JVNDB-2022-000041

WordPress Plugin "Modern Events Calendar Lite" vulnerable to cross-site scripting

Overview

WordPress Plugin "Modern Events Calendar Lite" provided by Webnus contains a stored cross-site scripting vulnerability (CWE-79).

Tsutomu Aramaki of Mitsui Bussan Secure Directions, 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


Webnus
  • Modern Events Calendar Lite prior to 6.3.0

Impact

An arbitrary script may be executed on the web browser of the user who is accessing the website using the plugin.
Solution

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

Webnus
CWE (What is CWE?)

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

  1. CVE-2022-30533
References

  1. JVN : JVN#04155116
Revision History

  • [2022/06/01]
      Web page was published

Date Public2022/06/01
Date First Published2022/06/01
Date Last Updated2022/06/01