Path Traversal

Umbraco is vulnerable to Path Traversal. The vulnerability is due to backoffice users with permissions to create packages, enabling them to exploit path traversal and write files outside of the expected location. This issue can be exploited by an attacker to write malicious files on the server...

Incorrect Authorization

Overview UmbracoCms.Web is an ASP.NET CMS. Affected versions of this package are vulnerable to Incorrect Authorization due to improper access control mechanisms. An attacker can gain access to unauthorized functionalities or data by exploiting the endpoints that are not adequately secured...

Exposure of Sensitive Information

Overview Affected versions of this package are vulnerable to Exposure of Sensitive Information via a brute force attack. An attacker can collect valid usernames by repeatedly attempting to authenticate with different usernames. Remediation Upgrade Umbraco.Cms to version 10.8.1, 12.3.4 or higher...

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Overview Affected versions of this package are vulnerable to Improper Neutralization of Input During Web Page Generation 'Cross-site Scripting'. An attacker with access to the backoffice can upload malicious SVG files containing scripts, which may be executed if another user is tricked into loadi...

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Overview UmbracoCms.Core is an ASP.NET CMS. Affected versions of this package are vulnerable to Improper Limitation of a Pathname to a Restricted Directory 'Path Traversal' due to insufficient validation of user-supplied input in the package creation functionality. An attacker with permission to...

Information Exposure

Overview Affected versions of this package are vulnerable to Information Exposure due to improper configuration of the SMTP settings combined with enabled password reset functionality. An attacker can enumerate user accounts by observing the behavior of the password reset feature. Remediation...

CVE-2023-49278

Umbraco is an ASP.NET content management system CMS. Starting in version 8.0.0 and prior to versions 8.18.10, 10.8.1, and 12.3.4, a brute force exploit can be used to collect valid usernames. Versions 8.18.10, 10.8.1, and 12.3.4 contain a patch for this issue...

CVE-2023-49279

Umbraco is an ASP.NET content management system CMS. Starting in version 7.0.0 and prior to versions 7.15.11, 8.18.9, 10.7.0, 11.5.0, and 12.2.0, a user with access to the backoffice can upload SVG files that include scripts. If the user can trick another user to load the media directly in a...

CVE-2023-49274

Umbraco is an ASP.NET content management system CMS. Starting in version 8.0.0 and prior to versions 8.18.10, 10.8.1, and 12.3.4, a user enumeration attack is possible when SMTP is not set up correctly, but reset password is enabled. Versions 8.18.10, 10.8.1, and 12.3.4 contain a patch for this...

Information disclosure

Umbraco is an ASP.NET content management system CMS. Starting in version 8.0.0 and prior to versions 8.18.10, 10.8.1, and 12.3.4, a brute force exploit can be used to collect valid usernames. Versions 8.18.10, 10.8.1, and 12.3.4 contain a patch for this issue...

Input validation

Umbraco is an ASP.NET content management system CMS. Starting in version 7.0.0 and prior to versions 7.15.11, 8.18.9, 10.7.0, 11.5.0, and 12.2.0, a user with access to the backoffice can upload SVG files that include scripts. If the user can trick another user to load the media directly in a...

Default credentials

Umbraco is an ASP.NET content management system CMS. Starting in version 8.0.0 and prior to versions 8.18.10, 10.8.1, and 12.3.4, a user enumeration attack is possible when SMTP is not set up correctly, but reset password is enabled. Versions 8.18.10, 10.8.1, and 12.3.4 contain a patch for this...

CVE-2023-49279 Umbraco CMS vulnerable to stored XSS via SVG File Upload

Umbraco is an ASP.NET content management system CMS. Starting in version 7.0.0 and prior to versions 7.15.11, 8.18.9, 10.7.0, 11.5.0, and 12.2.0, a user with access to the backoffice can upload SVG files that include scripts. If the user can trick another user to load the media directly in a...

CVE-2023-49279 Umbraco CMS vulnerable to stored XSS via SVG File Upload

Umbraco is an ASP.NET content management system CMS. Starting in version 7.0.0 and prior to versions 7.15.11, 8.18.9, 10.7.0, 11.5.0, and 12.2.0, a user with access to the backoffice can upload SVG files that include scripts. If the user can trick another user to load the media directly in a...

CVE-2023-49279

CVE-2023-49279 – Umbraco SVG backoffice upload issue : Umbraco CMS (ASP.NET) versions prior to patches allow a backoffice user to upload SVG files containing scripts. If another user loads the media in a browser, scripts can execute. Affected versions: 7.0.0 through just-before patches 7.15.11, 8...

CVE-2023-49279 Umbraco CMS vulnerable to stored XSS via SVG File Upload

Umbraco is an ASP.NET content management system CMS. Starting in version 7.0.0 and prior to versions 7.15.11, 8.18.9, 10.7.0, 11.5.0, and 12.2.0, a user with access to the backoffice can upload SVG files that include scripts. If the user can trick another user to load the media directly in a...

CVE-2023-49273

Umbraco is an ASP.NET content management system CMS. Starting in version 8.0.0 and prior to versions 8.18.10, 10.8.1, and 12.3.4, users with low privileges Editor, etc. are able to access some unintended endpoints. Versions 8.18.10, 10.8.1, and 12.3.4 contain a patch for this issue...

CVE-2023-49089

Umbraco is an ASP.NET content management system CMS. Starting in version 8.0.0 and prior to versions 8.18.10, 10.8.1, and 12.3.0, Backoffice users with permissions to create packages can use path traversal and thereby write outside of the expected location. Versions 8.18.10, 10.8.1, and 12.3.0...

Path traversal

Umbraco is an ASP.NET content management system CMS. Starting in version 8.0.0 and prior to versions 8.18.10, 10.8.1, and 12.3.0, Backoffice users with permissions to create packages can use path traversal and thereby write outside of the expected location. Versions 8.18.10, 10.8.1, and 12.3.0...

Information disclosure

Umbraco is an ASP.NET content management system CMS. Starting in version 8.0.0 and prior to versions 8.18.10, 10.8.1, and 12.3.4, users with low privileges Editor, etc. are able to access some unintended endpoints. Versions 8.18.10, 10.8.1, and 12.3.4 contain a patch for this issue...