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.
                
            References
                    | Link | Resource | 
|---|---|
| https://github.com/bsmali4/cve/blob/master/CMS%20Made%20Simple%20UPLOAD%20FILE%20XSS.md | Issue Tracking Third Party Advisory | 
| https://github.com/bsmali4/cve/blob/master/CMS%20Made%20Simple%20UPLOAD%20FILE%20XSS.md | Issue Tracking Third Party Advisory | 
Configurations
                    History
                    21 Nov 2024, 03:16
| Type | Values Removed | Values Added | 
|---|---|---|
| References | () https://github.com/bsmali4/cve/blob/master/CMS%20Made%20Simple%20UPLOAD%20FILE%20XSS.md - Issue Tracking, Third Party Advisory | 
Information
                Published : 2017-11-12 18:29
Updated : 2025-04-20 01:37
NVD link : CVE-2017-16798
Mitre link : CVE-2017-16798
CVE.ORG link : CVE-2017-16798
JSON object : View
Products Affected
                cmsmadesimple
- cms_made_simple
CWE
                
                    
                        
                        CWE-79
                        
            Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
