Tree BBS from Let's PHP! vulnerable to cross-site scripting


Tree BBS from Let's PHP! contains a cross-site scripting vulnerability.

Tree BBS from Let's PHP! is a tree-structured bulletin board software. Tree BBS contains a cross-site scripting vulnerability.

Yoshinori Ohta of Business Architects Inc. 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 4.3 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Medium
  • Authentication: None
  • Confidentiality Impact: None
  • Integrity Impact: Partial
  • Availability Impact: None
Affected Products

Let's PHP!
  • Tree BBS released on November 23, 2004 and earlier


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

Let's PHP!
CWE (What is CWE?)

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

  1. CVE-2009-2226

  1. JVN : JVN#93827000
  2. National Vulnerability Database (NVD) : CVE-2009-2226
  3. Secunia Advisory : SA35466
Revision History

  • [2009/07/01]
      Web page published