HTML Injection- October CMS - CVE-2018-7198

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HTML Injection- October CMS

By- Samrat Das

Hi Readers,

Recently while performing some open source security assessment, I came across an CMS Application, “October CMS” . Curious to explore its functionalities, I set up a local copy and started playing around to find security vulnerabilities’. 

Title of the Vulnerability:  HTML Injection.

Vulnerability Class: Code Execution/ Information Stealing

Technical Details & Description: The application source code is coded in a way which allows malicious HTML commands to be executed in the inner pages which can lead to execution of arbitrary code.

CVE ID allocated: -  CVE-2018-7198

Product & Service Introduction: October CMS

Steps to Re-Produce –
1.       Visit the application
2.       Visit the Add Posts Page.
3.        Goto edit function and add any html payload, it gets saved and executed further in web page.

Exploitation Technique: A attacker can perform application defacing to information stealing.

Severity Level: High

Security Risk:
The presence of such a risk can lead to user data compromise as well as site defacing.

Exploit code:
<input type=text>

Affected Product Version: October CMS

Solution - Fix & Patch: The application code should be configured to encode input characters and prevent unsafe input.







Comments

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