Cmsimple: >> Cmsimple Security Vulnerabilities
CMSimple 5.4 contains an authenticated local file inclusion vulnerability that allows remote attackers to manipulate PHP session files and execute arbitrary code. Attackers can leverage the vulnerability by changing the functions file path and uploading malicious PHP code through session file upload mechanisms.
CVSS Score
5.5
EPSS Score
0.001
Published
2025-12-23
CMSimple 5.4 contains an authenticated remote code execution vulnerability that allows logged-in attackers to inject malicious PHP code into template files. Attackers can exploit the template editing functionality by crafting a reverse shell payload and saving it through the template editing endpoint with a valid CSRF token.
CVSS Score
8.8
EPSS Score
0.002
Published
2025-12-23
CMSimple 5.2 contains a stored cross-site scripting vulnerability in the Filebrowser External input field that allows attackers to inject malicious JavaScript. Attackers can place unfiltered JavaScript code that executes when users click on Page or Files tabs, enabling persistent script injection.
CVSS Score
7.2
EPSS Score
0.0
Published
2025-12-23
CMSimple 5.4 contains a cross-site scripting vulnerability that allows attackers to bypass input filtering by using HTML to Unicode encoding. Attackers can inject malicious scripts by encoding payloads like ')-alert(1)// and execute arbitrary JavaScript when victims interact with delete buttons.
CVSS Score
6.1
EPSS Score
0.0
Published
2025-12-23
CMSimple 5.15 contains a remote command execution vulnerability that allows authenticated attackers to modify file extensions and upload malicious PHP files. Attackers can append ',php' to Extensions_userfiles and upload a shell script to the media directory to execute arbitrary code on the server.
CVSS Score
8.8
EPSS Score
0.007
Published
2025-12-10
Insecure Permissions vulnerability in CMSimple v.5.16 allows a remote attacker to obtain sensitive information via a crafted script to the Functionality of downloading php backup files.
CVSS Score
7.5
EPSS Score
0.002
Published
2025-01-27
CMSimple 5.16 allows the user to edit log.php file via print page.
CVSS Score
9.1
EPSS Score
0.002
Published
2025-01-27
CMSimple 5.16 allows the user to read cms source code through manipulation of the file name in the file parameter of a GET request.
CVSS Score
7.5
EPSS Score
0.003
Published
2025-01-27
An issue in CMSimple v.5.16 allows a remote attacker to obtain sensitive information via a crafted script to the validate link function.
CVSS Score
7.5
EPSS Score
0.002
Published
2025-01-27
Cross-Site Scripting (XSS) vulnerability in the Settings menu of CMSimple v5.15 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Logout parameter under the Language section.
CVSS Score
7.4
EPSS Score
0.002
Published
2024-05-01
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