Basercms Cross-site Scripting

Stored cross-site scripting vulnerability in Permission Settings of baserCMS versions prior to 4.7.2 allows a remote authenticated attacker with an administrative privilege to inject an arbitrary script. (2022-12-07, CVE-2022-41994)

Stored cross-site scripting vulnerability in User group management of baserCMS versions prior to 4.7.2 allows a remote authenticated attacker with an administrative privilege to inject an arbitrary script. (2022-12-07, CVE-2022-42486)

BaserCMS is a content management system with a japanese language focus. In affected versions there is a cross-site scripting vulnerability on the management system of baserCMS. This is a vulnerability that needs to be addressed when the management system is used by an unspecified number of users. Users of baserCMS are advised to upgrade as soon as possible. There are no known workarounds for this vulnerability. (2022-11-25, CVE-2022-39325)

baserCMS is an open source content management system with a focus on Japanese language support. In affected versions there is a cross-site scripting vulnerability in the file upload function of the management system of baserCMS. Users are advised to update as soon as possible. No workaround are available to mitigate this issue. (2021-08-25, CVE-2021-39136)

Improper neutralization of JavaScript input in the blog article editing function of baserCMS versions prior to 4.4.5 allows remote authenticated attackers to inject an arbitrary script via unspecified vectors. (2021-03-26, CVE-2021-20683)

Improper neutralization of JavaScript input in the page editing function of baserCMS versions prior to 4.4.5 allows remote authenticated attackers to inject an arbitrary script via unspecified vectors. (2021-03-26, CVE-2021-20681)

baserCMS before version 4.4.1 is vulnerable to Cross-Site Scripting. Arbitrary JavaScript may be executed by entering a crafted nickname in blog comments. The issue affects the blog comment component. It is fixed in version 4.4.1. (2020-10-30, CVE-2020-15276)

baserCMS before version 4.4.1 is vulnerable to Cross-Site Scripting. The issue affects the following components: Edit feed settings, Edit widget area, Sub site new registration, New category registration. Arbitrary JavaScript may be executed by entering specific characters in the account that can access the file upload function category list, subsite setting list, widget area edit, and feed list on the management screen. The issue was introduced in version 4.0.0. It is fixed in version 4.4.1. (2020-10-30, CVE-2020-15273)

baserCMS 4.3.6 and earlier is affected by Cross Site Scripting (XSS) and Remote Code Execution (RCE). This may be executed by logging in as a system administrator and uploading an executable script file such as a PHP file.The affected components are ThemeFilesController.php and UploaderFilesController.php. This is fixed in version 4.3.7. (2020-08-28, CVE-2020-15159)

baserCMS 4.3.6 and earlier is affected by Cross Site Scripting (XSS) via arbitrary script execution. Admin access is required to exploit this vulnerability. The affected components is toolbar.php. The issue is fixed in version 4.3.7. (2020-08-28, CVE-2020-15155)

baserCMS 4.3.6 and earlier is affected by Cross Site Scripting (XSS) via arbitrary script execution. Admin access is required to exploit this vulnerability. The affected components are: content_fields.php, content_info.php, content_options.php, content_related.php, index_list_tree.php, jquery.bcTree.js. The issue is fixed in version 4.3.7. (2020-08-28, CVE-2020-15154)

An issue was discovered in baserCMS before 4.1.4. In the Register New Category feature of the Upload menu, the category name can be used for XSS via the data[UploaderCategory][name] parameter to an admin/uploader/uploader_categories/edit URI. (2018-11-05, CVE-2018-18943)

Cross-site scripting vulnerability in baserCMS (baserCMS 4.1.0.1 and earlier versions, baserCMS 3.0.15 and earlier versions) allows remote attackers to inject arbitrary web script or HTML via unspecified vectors. (2018-06-26, CVE-2018-0574)

Cross-site scripting vulnerability in baserCMS (baserCMS 4.1.0.1 and earlier versions, baserCMS 3.0.15 and earlier versions) allows remote authenticated attackers to inject arbitrary web script or HTML via unspecified vectors. (2018-06-26, CVE-2018-0570)

Cross site scripting is an attack where a web page executes code that is injected by an adversary. It usually appears, when users input is presented. This attack can be used to impersonate a user, take over control of the session, or even steal API keys.

The attack can be executed e.g. when you application injects the request parameter directly into the HTML code of the page returned to the user:

https://server.com/confirmation?message=Transaction+Complete

what results in:

<span>Confirmation: Transaction Complete</span>

In that case the message can be modified to become a valid Javascript code, e.g.:

https://server.com/confirmation?message=<script>dangerous javascript code here</script>

and it will be executed locally by the user's browser with full access to the user's personal application/browser data:

<span>Confirmation: <script>dangerous javascript code here</script></span>