Prado TJavaScript::encode() script injection vulnerability

Type securityvulns
Reporter Securityvulns
Modified 2012-04-09T00:00:00


Prado TJavaScript::encode() script injection vulnerability

Vulnerability severity : medium Vulnerability type : cross-site script injection attack cookie theft session hijacking stealing of sensitive information

Remotely exploitable : yes

Vulnerability discovery date : 2012/03/07 Vulnerability discovered by : Gabor Berczi <>

Proof of concept exploit created : 2012/03/11 Proof of concept exploit developed by : Gabor Berczi <>

Fix created : 2012/03/07 Fix developed by : Gabor Berczi <>

Vulnerability reported to vendor : 2011/03/07

Affected products : PRADO (PHP Framework) 3.x


The vulnerability allows injection of arbitrary JavaScript snippets into some of the standard controls built into PRADO, if the latter try to display or use string type information that begins with user-supplied data fragments. This can be used by a remote attacker to hijack a victim's session and steal sensitive information.

The vulnerability exists because the affected standard controls do not escape user-supplied textual information properly when rendering the JavaScript code for their client-side wrappers, and because the PRADO Framework provides currently no way for the application or component developers to supply textual information to said controls in an XSS-safe way. The latter also means that several 3rd party components or application might be also affected by the issue, even if they don't use any of the vulnerable standard controls, but pass information the same way to the client-side as the former do.

A fix has been already provided for the vulnerability, alongside with a PoC exploit.