CVE-2017-16798
5.4 · MEDIUMOverview
CVE-2017-16798 is a medium-severity vulnerability affecting cmsmadesimple cms_made_simple. It was published on November 12, 2017 and has a CVSS 3.1 base score of 5.4 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
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.
Remediation
Check the references section for vendor advisories and patches from cmsmadesimple. Update cms_made_simple to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
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Frequently Asked Questions
What is CVE-2017-16798?
CVE-2017-16798 is a medium-severity vulnerability affecting cmsmadesimple cms_made_simple. It was published on November 12, 2017 and has a CVSS 3.1 base score of 5.4 (MEDIUM).
How severe is CVE-2017-16798?
This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2017-16798?
Check the references section for vendor advisories and patches from cmsmadesimple. Update cms_made_simple to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2017-16798?
CyberStrike's AI-powered security agents can automatically detect CVE-2017-16798 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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