ikiwiki "author" and "authorurl" Meta Directives Script Insertion Vulnerabilities

SA49232

CVE-2012-0220

18 May 2012

Less Critical

Vendor Patch

ikiwiki 3.x

From remote

Cross-Site Scripting

Cross-Site Scripting vulnerabilities allow a third party to manipulate the content or behaviour of a web application in a user's browser, without compromising the underlying system.

Different Cross-Site Scripting related vulnerabilities are also classified under this category, including "script insertion" and "cross-site request forgery".

Cross-Site Scripting vulnerabilities are often used against specific users of a website to steal their credentials or to conduct spoofing attacks.

Two vulnerabilities has been reported in ikiwiki, which can be exploited by malicious users to conduct script insertion attacks.

Input passed via the "author" and "authorurl" parameters to meta directives when creating or editing a page is not properly sanitised before being used. This can be exploited to insert arbitrary HTML and script code, which will be executed in a user's browser session in context of an affected site when the malicious data is being viewed.

The vulnerabilities are reported in versions prior to 3.20120516.

Update to version 3.20120516.

The vendor credits Raul Benencia.

http://ikiwiki.info/news/version_3.20120516/