Supercali Event Calendar 1.0.8: XSS

Supercali Event Calendar 1.0.8: XSS

Date: 2015-10-07 16:00:24
Security Advisory – Curesec Research Team

1. Introduction

Affected Product: Supercali Event Calendar 1.0.8
Fixed in: not fixed
Fixed Version Link: n/a
Vendor Website: http://supercali.inforest.com/
Vulnerability Type: XSS
Remote Exploitable: Yes
Reported to vendor: 09/01/2015
Disclosed to public: 10/07/2015
Release mode: Full Disclosure
CVE: n/a
Credits Tim Coen of curesec GmbH

2. Vulnerability Description

There is an XSS vulnerability via the "id" GET parameter when editing a group in Supercali Event Calendar 1.0.8. With this, it is possible to steal cookies or inject JavaScript keyloggers.

3. Proof of Concept

http://supercali-1.0.8/supercali-1.0.8/edit_groups.php?mode=edit_group&id=<script>alert('xss')</script>

4. Solution

This issue was not fixed by the vendor.

5. Report Timeline

09/01/2015 Informed Vendor about Issue (no reply)
10/07/2015 Disclosed to public