[Japanese]

JVNDB-2020-000054

Multiple cross-site scripting vulnerabilities in Exment

Overview

Exment provided by Kajitori Co.,Ltd contains multiple cross-site scripting vulnerabilities listed below.
* Stored cross-site scripting vulnerability in some input fields (CWE-79) - CVE-2020-5619
* Stored cross-site scripting vulnerability in upload files (CWE-79) - CVE-2020-5620

Ryoya Koyama 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 3.5 (Low) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Medium
  • Authentication: Single Instance
  • Confidentiality Impact: None
  • Integrity Impact: Partial
  • Availability Impact: None
The above CVSS base scores have been assigned for CVE-2020-5619

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: 3.5 (Low) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Medium
  • Authentication: Single
  • Confidentiality Impact: None
  • Integrity Impact: Partial
  • Availability Impact: None
The above CVSS base scores have been assigned for CVE-2020-5620
Affected Products


Kajitori Corporation
  • Exment prior to version v3.6.0

Impact

An arbitrary script may be executed on a logged-in user's web browser.
Solution

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

Kajitori Corporation
CWE (What is CWE?)

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

  1. CVE-2020-5619
  2. CVE-2020-5620
References

  1. JVN : JVN#88315581
  2. National Vulnerability Database (NVD) : CVE-2020-5619
  3. National Vulnerability Database (NVD) : CVE-2020-5620
Revision History

  • [2020/08/21]
      Web page was published

Date Public2020/08/21
Date First Published2020/08/21
Date Last Updated2020/08/21