XSS and SQL Injection Vulnerabilities in MiniBB


Advisory by Netsparker (now Invicti)
Name: XSS and SQL Injection Vulnerabilities in MiniBB
Software : MiniBB 3.0.0 and possibly below.
Vendor Homepage: http://www.minibb.com
Vulnerability Type: Cross-Site Scripting and SQL Injection
Severity: Critical
Researcher: Omar Kurt
Advisory Reference: NS-13-002


miniBB® is a standalone, open source program for building your own Internet forum, and it’s free to download. Comparing to the other forum software available on the market, miniBB just brings what it’s created for: an easy, lite, and speedy quick forum.


MiniBB is affected by XSS and SQL Injection vulnerabilities in version 3.0.0.

  • XSS: http://example.com/bb_admin.php (GET – params: forum_name, forum_group, forum_icon, whatus, forum_desc)
  • SQL Injection: http://example.com/bb_admin.php?action=searchusers2&searchus=id&whatus='+(SELECT 1 FROM (SELECT SLEEP(25))A)+'

Learn more about Cross-Site Scripting and SQL Injection vulnerabilities:


Advisory Timeline

26/02/2013 – First contact
15/03/2013 – Fix & New MiniBB version released
11/07/2013 – Advisory released


It has been discovered on testing of Invicti Web Application Security Scanner.


  1. Vendor URL / Patch: http://www.minibb.com/forums/news-9/minibb-3.0.1-released-stable-fixed-secured-dedicated-6059.html
  2. MSL Advisory Link: /xss-and-sql-injection-vulnerabilities-in-minibb/
  3. Invicti Advisories: /web-applications-advisories/

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