QNAP QTS vulnerable to cross-site scripting


QNAP QTS is an operating system for Turbo NAS. QNAP QTS contains a cross-site scripting vulnerability (CWE-79).

Keigo YAMAZAKI of LAC Co., Ltd. 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

QNAP Systems
  • QNAP QTS versions prior to 4.2.0


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

[Update the Firmware]
Update to the latest version of firmware according to the information provided by the developer.
Vendor Information

QNAP Systems
CWE (What is CWE?)

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

  1. CVE-2015-5664

  1. JVN : JVN#42930233
  2. National Vulnerability Database (NVD) : CVE-2015-5664
Revision History

  • [2016/06/27]
      Web page was published
      References : Content was added