XSS Vulnerabilities in Andy’s PHP Knowledgebase


Advisory by Netsparker (now Invicti)
Name: XSS Vulnerabilities in Andy’s PHP Knowledgebase
Software: Andy’s PHP Knowledgebase 0.95.7 and possibly below.
Vendor Homepage: http://aphpkb.org/
Vulnerability Type: Cross-Site Scripting
Severity: Critical
Researcher: Omar Kurt
Advisory Reference: NS-13-017


Andy’s PHP Knowledgebase using MySQL is a database driven knowledgebase management system. It includes bookmark-friendly URLs, Q&A, easy search with browsing by article tags, article submission, a powerful administrator interface, and a professional and attractive interface.


Andy’s PHP Knowledgebase is affected by XSS vulnerabilities in version 0.95.7.
Example PoC urls are as follows:

  • XSS
    http://example.com/register.php (POST – params: news_id)
    http://example.com/saa.php (Referer - '"--></style></script><script>netsparker(0x000122)</script>)
    http://example.com/login.php (POST – username)
    http://example.com/keysearch.php (POST – keyword_list)

You can read the full article about Cross-Site Scripting vulnerabilities from here:



Advisory Timeline

10/12/2013 – First Contact – No Response
13/12/2013 – Sent Vulnerabilities Details
24/12/2013 – Vulnerabilities Fixed and Version 0.95.8 Released by Developer
24/12/2013 – Advisory Released


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

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