Kirby vulnerable to arbitrary file creation


Kirby is a content management system (CMS). Kirby contains a vulnerability that may allow a remote attacker to create arbitrary files.

Yuji Tounai of NTT Com Security(Japan)KK reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V2 Severity:
Base Metrics 6.5 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Low
  • Authentication: Single Instance
  • Confidentiality Impact: Partial
  • Integrity Impact: Partial
  • Availability Impact: Partial
Affected Products

Bastian Allgeier GmbH
  • Kirby 2.1.1 and earlier


An arbitrary file created by a logged in attacker may result in arbitrary PHP code being executed on the server.

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

Bastian Allgeier GmbH
CWE (What is CWE?)

  1. Improper Input Validation(CWE-20) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2015-7773

  1. JVN : JVN#34780384
  2. National Vulnerability Database (NVD) : CVE-2015-7773
Revision History

  • [2015/11/17]
      Web page was published
      References : Content was added