Log-Chat vulnerable to cross-site scripting


Log-Chat provided by Script* contains a stored cross-site scripting vulnerability (CWE-79).

Masamu Asato of National Institute of Technology, Okinawa College reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

Base Metrics: 5.0 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Low
  • Authentication: None
  • Confidentiality Impact: None
  • Integrity Impact: Partial
  • Availability Impact: None

CVSS V3 Severity:
Base Metrics: 6.1 (Medium) [IPA Score]
  • Access Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Changed
  • Confidentiality Impact: Low
  • Integrity Impact: Low
  • Availability Impact: None
Affected Products

  • Log-Chat ver 1.0


An arbitrary script may be executed on the user's web browser.

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

CWE (What is CWE?)

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

  1. CVE-2016-1157

  1. JVN : JVN#93535632
  2. National Vulnerability Database (NVD) : CVE-2016-1157
Revision History

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