TikiWiki 'show_errors' Parameter Stored Cross-Site Scripting Vulnerability

Summary
The host is running TikiWiki and is prone to stored cross site scripting vulnerabilitiy.
Impact
Successful exploitation will allow remote attackers to insert arbitrary HTML and script code, which will be executed in a user's browser session in the context of an affected site. Impact Level: Application
Solution
Upgrade TikiWiki to 8.2 or 6.5 LTS or later, For updates refer to http://info.tiki.org/
Insight
The flaw is due to improper validation of user-supplied input to 'show_errors' paramter in 'tiki-cookie-jar.php', 'tiki-login.php' and 'tiki-remind_password.php' script, which allows attackers to conduct stored xss by sending a crafted request with JavaScript.
Affected
TikiWiki versions prior to 8.2 and 6.5 LTS.
References