Get-Simple: Security Vulnerabilities
GetSimple CMS My SMTP Contact Plugin 1.1.2 suffers from a Stored Cross-Site Scripting (XSS) vulnerability. The plugin attempts to sanitize user input using htmlspecialchars(), but this can be bypassed by passing dangerous characters as escaped hex bytes. This allows attackers to inject arbitrary client-side code that executes in the administrator's browser when visiting a malicious page.
CVSS Score
5.4
EPSS Score
0.001
Published
2026-01-21
GetSimple CMS Custom JS 0.1 plugin contains a cross-site request forgery vulnerability that allows unauthenticated attackers to inject arbitrary client-side code into administrator browsers. Attackers can craft a malicious website that triggers a cross-site scripting payload to execute remote code on the hosting server when an authenticated administrator visits the page.
CVSS Score
8.5
EPSS Score
0.001
Published
2026-01-21
GetSimple CMS My SMTP Contact Plugin 1.1.2 contains a PHP code injection vulnerability. An authenticated administrator can inject arbitrary PHP code through plugin configuration parameters, leading to remote code execution on the server.
CVSS Score
8.6
EPSS Score
0.011
Published
2026-01-21
GetSimple CMS My SMTP Contact Plugin 1.1.1 contains a cross-site request forgery (CSRF) vulnerability. Attackers can craft a malicious webpage that, when visited by an authenticated administrator, can change SMTP configuration settings in the plugin. This may allow unauthorized changes but does not directly enable remote code execution.
CVSS Score
5.1
EPSS Score
0.001
Published
2026-01-21
An authenticated remote code execution vulnerability exists in GetSimpleCMS version 3.2.1. The application’s upload.php endpoint allows authenticated users to upload arbitrary files without proper validation of MIME types or extensions. By uploading a .pht file containing PHP code, an attacker can bypass blacklist-based restrictions and place executable code within the web root. A crafted request using a polyglot or disguised extension allows the attacker to execute the payload by accessing the file directly via the web server. This vulnerability exists due to the use of a blacklist for filtering file types instead of a whitelist.
CVSS Score
8.7
EPSS Score
0.607
Published
2025-07-25
A vulnerability was found in GetSimpleCMS 3.3.16 and classified as problematic. This issue affects some unknown processing of the file /admin/profile.php. The manipulation leads to cross-site request forgery. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
CVSS Score
6.9
EPSS Score
0.002
Published
2024-11-12
A Cross Site Scripting (XSS) vulnerability in GetSimple CMS 3.3.16 exists when using Source Code Mode as a backend user to add articles via the /admin/edit.php page.
CVSS Score
5.4
EPSS Score
0.002
Published
2024-01-08
A vulnerability was found in GetSimpleCMS 3.3.16/3.4.0a. It has been rated as critical. This issue affects some unknown processing of the file /admin/theme-edit.php. The manipulation leads to code injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-245735.
CVSS Score
4.7
EPSS Score
0.001
Published
2023-11-17
Cross Site Scripting vulnerability in GetSimpleCMS v.3.4.0a allows a remote attacker to execute arbitrary code via the a crafted payload to the components.php function.
CVSS Score
5.4
EPSS Score
0.002
Published
2023-10-31
An issue in GetSimpleCMS v.3.4.0a allows a remote attacker to execute arbitrary code via a crafted payload to the phpinfo().
CVSS Score
9.8
EPSS Score
0.682
Published
2023-10-19
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