Get-simpleCVEs & Vulnerabilities

47 CVEs affecting Get-simple products, tracked from the National Vulnerability Database, with CVSS/EPSS scores and exploitation status.

Most Affected Products

getsimple cms 66getsimplecms 22
CVE-2021-47870MEDIUM

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.

21 Jan 2026
5.4
CVSS
CVE-2021-47860MEDIUM

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.

21 Jan 2026
4.3
CVSS
CVE-2021-47830MEDIUM

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.

21 Jan 2026
6.5
CVSS
CVE-2021-47778HIGH

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.

21 Jan 2026
7.2
CVSS
CVE-2013-10032HIGH

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.

25 Jul 2025
8.8
CVSS
CVE-2024-11125MEDIUM

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.

12 Nov 2024
4.3
CVSS
CVE-2023-51246MEDIUM

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.

8 Jan 2024
5.4
CVSS
CVE-2023-6188CRITICAL

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.

17 Nov 2023
9.8
CVSS
CVE-2023-46040MEDIUM

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.

31 Oct 2023
5.4
CVSS
CVE-2023-46042CRITICAL

An issue in GetSimpleCMS v.3.4.0a allows a remote attacker to execute arbitrary code via a crafted payload to the phpinfo().

19 Oct 2023
9.8
CVSS
CVE-2022-41544CRITICALpoc

GetSimple CMS v3.3.16 was discovered to contain a remote code execution (RCE) vulnerability via the edited_file parameter in admin/theme-edit.php.

18 Oct 2022
9.8
CVSS
CVE-2022-1503MEDIUM

A vulnerability, which was classified as problematic, has been found in GetSimple CMS. Affected by this issue is the file /admin/edit.php of the Content Module. The manipulation of the argument post-content with an input like <script>alert(1)</script> leads to cross site scripting. The attack may be launched remotely but requires authentication. Expoit details have been disclosed within the advisory.

27 Apr 2022
5.4
CVSS
CVE-2021-36601MEDIUM

GetSimpleCMS 3.3.16 contains a cross-site Scripting (XSS) vulnerability, where Function TSL does not filter check settings.php Website URL: "siteURL" parameter.

10 Aug 2021
6.1
CVSS
CVE-2020-21353MEDIUM

A stored cross site scripting (XSS) vulnerability in /admin/snippets.php of GetSimple CMS 3.4.0a allows attackers to execute arbitrary web scripts or HTML via crafted payload in the Edit Snippets module.

7 Aug 2021
5.4
CVSS
CVE-2020-18660MEDIUM

GetSimpleCMS <=3.3.15 has an open redirect in admin/changedata.php via the redirect function to the url parameter.

24 Jun 2021
6.1
CVSS
CVE-2020-18659MEDIUM

Cross Site Scripting vulnerability in GetSimpleCMS <=3.3.15 via the (1) sitename, (2) username, and (3) email parameters to /admin/setup.php

23 Jun 2021
6.1
CVSS
CVE-2020-18658MEDIUM

Cross Site Scriptiong (XSS) vulnerability in GetSimpleCMS <=3.3.15 via the timezone parameter to settings.php.

23 Jun 2021
6.1
CVSS
CVE-2020-18657MEDIUM

Cross Site Scripting (XSS) vulnerability in GetSimpleCMS <= 3.3.15 in admin/changedata.php via the redirect_url parameter and the headers_sent function.

23 Jun 2021
6.1
CVSS
CVE-2020-20391MEDIUM

Cross Site Scripting vulnerability in GetSimpleCMS 3.4.0a in admin/snippets.php via (1) Add Snippet and (2) Save snippets.

23 Jun 2021
5.4
CVSS
CVE-2020-20389MEDIUM

Cross Site Scripting (XSS) vulnerability in GetSimpleCMS 3.4.0a in admin/edit.php.

23 Jun 2021
4.8
CVSS
CVE-2021-28977MEDIUM

Cross Site Scripting vulnerability in GetSimpleCMS 3.3.16 in admin/upload.php by adding comments or jpg and other file header information to the content of xla, pages, and gzip files,

23 Jun 2021
4.8
CVSS
CVE-2021-28976HIGHpoc

Remote Code Execution vulnerability in GetSimpleCMS before 3.3.16 in admin/upload.php via phar filess.

23 Jun 2021
7.2
CVSS
CVE-2020-18191CRITICAL

GetSimpleCMS-3.3.15 is affected by directory traversal. Remote attackers are able to delete arbitrary files via /GetSimpleCMS-3.3.15/admin/log.php

2 Oct 2020
9.1
CVSS
CVE-2020-24861MEDIUM

GetSimple CMS 3.3.16 allows in parameter 'permalink' on the Settings page persistent Cross Site Scripting which is executed when you create and open a new page

1 Oct 2020
5.4
CVSS
CVE-2020-23839MEDIUMpoc

A Reflected Cross-Site Scripting (XSS) vulnerability in GetSimple CMS v3.3.16, in the admin/index.php login portal webpage, allows remote attackers to execute JavaScript code in the client's browser and harvest login credentials after a client clicks a link, enters credentials, and submits the login form.

1 Sep 2020
6.1
CVSS
CVE-2013-1420MEDIUM

Multiple cross-site scripting (XSS) vulnerabilities in GetSimple CMS before 3.2.1 allow remote attackers to inject arbitrary web script or HTML via the (1) id parameter to backup-edit.php; (2) title or (3) menu parameter to edit.php; or (4) path or (5) returnid parameter to filebrowser.php in admin/. NOTE: the path parameter in admin/upload.php vector is already covered by CVE-2012-6621.

3 Jan 2020
6.1
CVSS
CVE-2019-16333MEDIUM

GetSimple CMS v3.3.15 has Persistent Cross-Site Scripting (XSS) in admin/theme-edit.php.

16 Sep 2019
5.4
CVSS
CVE-2019-11231CRITICALpoc

An issue was discovered in GetSimple CMS through 3.3.15. insufficient input sanitation in the theme-edit.php file allows upload of files with arbitrary content (PHP code, for example). This vulnerability is triggered by an authenticated user; however, authentication can be bypassed. According to the official documentation for installation step 10, an admin is required to upload all the files, including the .htaccess files, and run a health check. However, what is overlooked is that the Apache HTTP Server by default no longer enables the AllowOverride directive, leading to data/users/admin.xml password exposure. The passwords are hashed but this can be bypassed by starting with the data/other/authorization.xml API key. This allows one to target the session state, since they decided to roll their own implementation. The cookie_name is crafted information that can be leaked from the frontend (site name and version). If a someone leaks the API key and the admin username, then they can bypass authentication. To do so, they need to supply a cookie based on an SHA-1 computation of this known information. The vulnerability exists in the admin/theme-edit.php file. This file checks for forms submissions via POST requests, and for the csrf nonce. If the nonce sent is correct, then the file provided by the user is uploaded. There is a path traversal allowing write access outside the jailed themes directory root. Exploiting the traversal is not necessary because the .htaccess file is ignored. A contributing factor is that there isn't another check on the extension before saving the file, with the assumption that the parameter content is safe. This allows the creation of web accessible and executable files with arbitrary content.

22 May 2019
9.8
CVSS
CVE-2018-19845MEDIUM

There is Stored XSS in GetSimple CMS 3.3.12 via the admin/edit.php "post-menu" parameter, a related issue to CVE-2018-16325.

31 Dec 2018
5.4
CVSS
CVE-2018-19421LOW

In GetSimpleCMS 3.3.15, admin/upload.php blocks .html uploads but Internet Explorer render HTML elements in a .eml file, because of admin/upload-uploadify.php, and validate_safe_file in admin/inc/security_functions.php.

21 Nov 2018
3.8
CVSS
CVE-2018-19420LOW

In GetSimpleCMS 3.3.15, admin/upload.php blocks .html uploads but there are several alternative cases in which HTML can be executed, such as a file with no extension or an unrecognized extension (e.g., the test or test.asdf filename), because of admin/upload-uploadify.php, and validate_safe_file in admin/inc/security_functions.php.

21 Nov 2018
3.8
CVSS
CVE-2018-17835MEDIUM

An issue was discovered in GetSimple CMS 3.3.15. An administrator can insert stored XSS via the admin/settings.php Custom Permalink Structure parameter, which injects the XSS payload into any page created at the admin/pages.php URI.

1 Oct 2018
4.8
CVSS
CVE-2018-17103HIGH

An issue was discovered in GetSimple CMS v3.3.13. There is a CSRF vulnerability that can change the administrator's password via admin/settings.php. NOTE: The vendor reported that the PoC was sending a value for the nonce parameter

17 Sep 2018
8.8
CVSS
CVE-2018-16325MEDIUM

There is XSS in GetSimple CMS 3.4.0.9 via the admin/edit.php title field.

2 Sep 2018
6.1
CVSS
CVE-2018-15843MEDIUM

GetSimple CMS 3.3.14 has XSS via the admin/edit.php "Add New Page" field.

26 Aug 2018
4.8
CVSS
CVE-2018-9173MEDIUMpoc

Cross-site scripting (XSS) vulnerability in admin/template/js/uploadify/uploadify.swf in GetSimple CMS 3.3.13 allows remote attackers to inject arbitrary web script or HTML, as demonstrated by the movieName parameter.

2 Apr 2018
6.1
CVSS
CVE-2017-10673MEDIUM

admin/profile.php in GetSimple CMS 3.x has XSS in a name field.

29 Jun 2017
6.1
CVSS
CVE-2014-8723MEDIUM

GetSimple CMS 3.3.4 allows remote attackers to obtain sensitive information via a direct request to (1) plugins/anonymous_data.php or (2) plugins/InnovationPlugin.php, which reveals the installation path in an error message.

17 Mar 2017
5.3
CVSS
CVE-2014-8722HIGHpoc

GetSimple CMS 3.3.4 allows remote attackers to obtain sensitive information via a direct request to (1) data/users/<username>.xml, (2) backups/users/<username>.xml.bak, (3) data/other/authorization.xml, or (4) data/other/appid.xml.

17 Mar 2017
7.5
CVSS
CVE-2015-5356MEDIUM

Cross-site scripting (XSS) vulnerability in admin/filebrowser.php in GetSimple CMS before 3.3.6 allows remote attackers to inject arbitrary web script or HTML via the func parameter.

1 Jul 2015
4.3
CVSS
CVE-2015-5355MEDIUM

Multiple cross-site scripting (XSS) vulnerabilities in GetSimple CMS before 3.3.6 allow remote attackers to inject arbitrary web script or HTML via the (1) post-content or (2) post-title parameter to admin/edit.php.

1 Jul 2015
4.3
CVSS
CVE-2014-8790MEDIUM

XML external entity (XXE) vulnerability in admin/api.php in GetSimple CMS 3.1.1 through 3.3.x before 3.3.5 Beta 1, when in certain configurations, allows remote attackers to read arbitrary files via the data parameter.

20 Jan 2015
5.0
CVSS
CVE-2014-1603MEDIUMpoc

Multiple cross-site scripting (XSS) vulnerabilities in GetSimple CMS 3.3.1 allow remote attackers to inject arbitrary web script or HTML via the (1) param parameter to admin/load.php or (2) user, (3) email, or (4) name parameter in a Save Settings action to admin/settings.php.

14 May 2014
4.3
CVSS
CVE-2013-7243MEDIUM

Multiple cross-site scripting (XSS) vulnerabilities in GetSimple CMS 3.1.2 and 3.2.3 allow remote attackers to inject arbitrary web script or HTML via the (1) post-menu field to edit.php or (2) Display name field to settings.php. NOTE: The Custom Permalink Structure and Email Address fields are already covered by CVE-2012-6621.

17 Jan 2014
4.3
CVSS
CVE-2012-6621MEDIUM

Multiple cross-site scripting (XSS) vulnerabilities in GetSimple CMS 3.1, 3.1.2, 3.2.3, and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) Email Address or (2) Custom Permalink Structure fields in admin/settings.php; (3) path parameter to admin/upload.php; (4) err parameter to admin/theme.php; (5) error parameter to admin/pages.php; or (6) success or (7) err parameter to admin/index.php.

16 Jan 2014
4.3
CVSS
CVE-2010-5052MEDIUMpoc

Cross-site scripting (XSS) vulnerability in admin/components.php in GetSimple CMS 2.01 allows remote attackers to inject arbitrary web script or HTML via the val[] parameter.

23 Nov 2011
4.3
CVSS
CVE-2010-4863MEDIUMpoc

Cross-site scripting (XSS) vulnerability in admin/changedata.php in GetSimple CMS 2.01 allows remote attackers to inject arbitrary web script or HTML via the post-title parameter.

5 Oct 2011
4.3
CVSS
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