Description

Cross-Site Scripting (XSS) attacks are a type of injection, in which malicious scripts are injected into websites. An attacker can use XSS to send a malicious script to an unsuspecting user. The end user’s browser has no way to know that the script should not be trusted, and will execute the script. https://github.com/shannah/xataface is vulnerable to XSS as shown below:

Proof of concept

Vuln variable: POST variables , for example: -dbuser
Snippet:

        $res = $this->test_db_access($_REQUEST['-dbname'], $_REQUEST['-dbuser'], $_REQUEST['-dbpass']);
        if ( PEAR::isError($res) ){
            $msg = array(
                'success' => false,
                'message' => $res->getMessage()
                );

Go to http://localhost/xataface-master/installer.php
Insert db credentials
Select Create application for existing database
Select any database
Under step2, insert into -dbuser the following:

user'</div><img src="x" onerror=alert`xss`>

Observe the XSS

Impact

Because it thinks the script came from a trusted source, the malicious script can access any cookies, session tokens, or other sensitive information retained by the browser and used with that site. These scripts can even rewrite the content of the HTML page.