Kinza vulnerable to cross-site scripting


Kinza provided by Dayz Inc. contains a cross-site scripting vulnerability (CWE-79).

RyotaK 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: Network
  • Access Complexity: Medium
  • Authentication: None
  • Confidentiality Impact: None
  • Integrity Impact: Partial
  • Availability Impact: None
Affected Products

Dayz Inc.
  • Kinza (for windows) version 5.9.2 and earlier
  • Kinza (for Mac) version 5.0.0 and earlier


If CSP (Content Security Policy) on the affected product is disabled, an arbitrary script may be executed on the web browser of the user who uses RSS reader.

[Update the Software]
Update to the latest version according to the information provided by the developer.

[Apply a workaround]
The following workaround may mitigate the affects of this vulnerability.

* Enable CSP

According to the developer, CSP is enabled in the initial configuration.
Vendor Information

Dayz Inc.
CWE (What is CWE?)

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

  1. CVE-2019-6031

  1. JVN : JVN#63047298
  2. National Vulnerability Database (NVD) : CVE-2019-6031
Revision History

  • [2019/12/11]
      Web page was published