[Japanese]

JVNDB-2021-000051

Multiple cross-site scripting vulnerabilities in multiple EC-CUBE plugins provided by EC-CUBE

Overview

Multiple EC-CUBE plugins provided by EC-CUBE CO.,LTD. contain multiple cross-site scripting vulnerabilities listed below.

*Cross-site scripting vulnerability (CWE-79) - CVE-2021-20742
*Cross-site scripting vulnerability (CWE-79) - CVE-2021-20743
*Cross-site scripting vulnerability (CWE-79) - CVE-2021-20744

EC-CUBE CO.,LTD. reported these vulnerabilities to JPCERT/CC to notify users of the solutions through JVN. JPCERT/CC and EC-CUBE CO.,LTD. coordinated under the Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 7.1 (High) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Changed
  • Confidentiality Impact: Low
  • Integrity Impact: Low
  • Availability Impact: Low
CVSS V2 Severity:
Base Metrics 6.8 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Medium
  • Authentication: None
  • Confidentiality Impact: Partial
  • Integrity Impact: Partial
  • Availability Impact: Partial
The above CVSS base scores have been assigned for CVE-2021-20742

CVSS V3 Severity:
Base Metrics: 6.1 (Medium) [JPCERT/CC 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: 2.6 (Low) [JPCERT/CC Score]
  • Access Vector: Network
  • Access Complexity: High
  • Authentication: None
  • Confidentiality Impact: None
  • Integrity Impact: Partial
  • Availability Impact: None
The above CVSS base scores have been assigned for CVE-2021-20743

CVSS V3 Severity:
Base Metrics: 6.1 (Medium) [JPCERT/CC 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: 2.6 (Low) [JPCERT/CC Score]
  • Access Vector: Network
  • Access Complexity: High
  • Authentication: None
  • Confidentiality Impact: None
  • Integrity Impact: Partial
  • Availability Impact: None
The above CVSS base scores have been assigned for CVE-2021-20744
Affected Products


EC-CUBE CO.,LTD.
  • Category contents plugin (for EC-CUBE 3.0 series) versions prior to version 1.0.1
  • Mail Magazine Management Plugin (for EC-CUBE 3.0 series) versions prior to version 1.0.4
  • Business form output plugin (for EC-CUBE 3.0 series) versions prior to version 1.0.1

The developer states these issues exist in EC-CUBE 3.0.0 to 3.0.8 environment only, and do not exist in EC-CUBE 3.0.9 or later environment.
Impact

*If a remote attacker injects a specially crafted script in the specific input field of the EC web site which is created using EC-CUBE, an arbitrary script may be executed on the administrator's web browser - CVE-2021-20742

*If a remote attacker leads a user of the product to a specially crafted page and to perform a specific operation, an arbitrary script may be executed on the user's web browser - CVE-2021-20743

*If a remote attacker leads an administrator or a user of the product to a specially crafted page and to perform a specific operation, an arbitrary script may be executed on the administrator's or the user's web browser - CVE-2021-20744
Solution

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

EC-CUBE CO.,LTD.
CWE (What is CWE?)

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

  1. CVE-2021-20742
  2. CVE-2021-20743
  3. CVE-2021-20744
References

  1. JVN : JVN#57524494
  2. National Vulnerability Database (NVD) : CVE-2021-20742
  3. National Vulnerability Database (NVD) : CVE-2021-20743
  4. National Vulnerability Database (NVD) : CVE-2021-20744
  5. JPCERT : Alert Regarding Cross Site Scripting Vulnerabilities in Multiple EC-CUBE 3.0 Series Plugins
Revision History

  • [2021/06/16]
      Web page was published

Date Public2021/06/16
Date First Published2021/06/16
Date Last Updated2021/06/16