What is the severity of CVE-2017-16798?

CVE-2017-16798 has a medium severity rating as it allows remote attackers to bypass access restrictions.

How do I fix CVE-2017-16798?

To fix CVE-2017-16798, update CMS Made Simple to a version that addresses this vulnerability.

What types of attacks does CVE-2017-16798 allow?

CVE-2017-16798 allows remote attackers to trigger XSS attacks through unsupported file extensions.

Which version of CMS Made Simple is affected by CVE-2017-16798?

CVE-2017-16798 affects CMS Made Simple version 2.2.3.1.

What function is vulnerable in CVE-2017-16798?

The vulnerable function in CVE-2017-16798 is is_file_acceptable located in modules/FileManager/action.upload.php.

Vulnerability/
CVE-2017-16798

medium

5.4

CWE

12/11/2017

21/11/2019

CVE-2017-16798: XSS

First published: Sun Nov 12 2017(Updated: )

In CMS Made Simple 2.2.3.1, the is_file_acceptable function in modules/FileManager/action.upload.php only blocks file extensions that begin or end with a "php" substring, which allows remote attackers to bypass intended access restrictions or trigger XSS via other extensions, as demonstrated by .phtml, .pht, .html, or .svg.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
CMS Made Simple	=2.2.3.1

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Reference Links

https://github.com/bsmali4/cve/blob/master/CMS%20Made%20Simple%20UPLOAD%20FILE%20XSS.md

Frequently Asked Questions

What is the severity of CVE-2017-16798?
CVE-2017-16798 has a medium severity rating as it allows remote attackers to bypass access restrictions.
How do I fix CVE-2017-16798?
To fix CVE-2017-16798, update CMS Made Simple to a version that addresses this vulnerability.
What types of attacks does CVE-2017-16798 allow?
CVE-2017-16798 allows remote attackers to trigger XSS attacks through unsupported file extensions.
Which version of CMS Made Simple is affected by CVE-2017-16798?
CVE-2017-16798 affects CMS Made Simple version 2.2.3.1.
What function is vulnerable in CVE-2017-16798?
The vulnerable function in CVE-2017-16798 is is_file_acceptable located in modules/FileManager/action.upload.php.

agent/weakness
agent/type
agent/references
agent/severity
agent/author
agent/event
agent/description
agent/last-modified-date
agent/first-publish-date
agent/softwarecombine
agent/tags
collector/nvd-index
agent/software-canonical-lookup-request
vendor/cmsmadesimple
canonical/cms made simple
version/cms made simple/2.2.3.1

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Frequently Asked Questions

What is the severity of CVE-2017-16798?
CVE-2017-16798 has a medium severity rating as it allows remote attackers to bypass access restrictions.
How do I fix CVE-2017-16798?
To fix CVE-2017-16798, update CMS Made Simple to a version that addresses this vulnerability.
What types of attacks does CVE-2017-16798 allow?
CVE-2017-16798 allows remote attackers to trigger XSS attacks through unsupported file extensions.
Which version of CMS Made Simple is affected by CVE-2017-16798?
CVE-2017-16798 affects CMS Made Simple version 2.2.3.1.
What function is vulnerable in CVE-2017-16798?
The vulnerable function in CVE-2017-16798 is is_file_acceptable located in modules/FileManager/action.upload.php.