Umbraco CMS
by Umbraco
Source repositories
CVEs (61)
| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2015-8815 | Med | 0.40 | 6.1 | 0.01 | Mar 3, 2017 | Multiple cross-site scripting (XSS) vulnerabilities in Umbraco before 7.4.0 allow remote attackers to inject arbitrary web script or HTML via the name parameter to (1) the media page, (2) the developer data edit page, or (3) the form page. | ||
| CVE-2026-31832 | Med | 0.35 | 5.4 | 0.00 | Mar 10, 2026 | Umbraco is an ASP.NET CMS. From 14.0.0 to before 16.5.1 and 17.2.2, A broken object-level authorization vulnerability exists in a backoffice API endpoint that allows authenticated users to assign domain-related data to content nodes without proper authorization checks. The issue… | ||
| CVE-2024-55488 | Med | 0.35 | 6.5 | 0.00 | Jan 22, 2025 | A stored cross-site scripting (XSS) vulnerability in Umbraco CMS v14.3.1 allows attackers to execute arbitrary web scripts or HTML via a crafted payload. NOTE: This has been disputed by the vendor since this potential attack is only possible via authenticated users who have been… | ||
| CVE-2023-49273 | Med | 0.35 | 5.4 | 0.00 | Dec 12, 2023 | 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… | ||
| CVE-2020-5809 | Med | 0.35 | 5.4 | 0.01 | Dec 30, 2020 | A stored XSS vulnerability exists in Umbraco CMS <= 8.9.1 or current. An authenticated user can inject arbitrary JavaScript code into iframes when editing content using the TinyMCE rich-text editor, as TinyMCE is configured to allow iframes by default in Umbraco CMS. | ||
| CVE-2021-47776 | Med | 0.34 | 5.3 | 0.00 | Jan 15, 2026 | Umbraco CMS v8.14.1 contains a server-side request forgery vulnerability that allows attackers to manipulate baseUrl parameters in multiple dashboard and help controller endpoints. Attackers can craft malicious requests to the GetContextHelpForPage, GetRemoteDashboardContent,… | ||
| CVE-2023-49278 | Med | 0.34 | 5.3 | 0.01 | Dec 12, 2023 | 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-2024-34071 | Med | 0.33 | 6.1 | 0.00 | May 21, 2024 | Umbraco is an ASP.NET CMS used by more than 730.000 websites. Umbraco has an endpoint that is vulnerable to open redirects. The endpoint is protected so it requires the user to be signed into backoffice before the vulnerable is exposed. This vulnerability has been patched in… | ||
| CVE-2018-17256 | Med | 0.31 | 4.8 | 0.01 | Nov 27, 2018 | Persistent cross-site scripting (XSS) vulnerability in Umbraco CMS 7.12.3 allows authenticated users to inject arbitrary web script via the Header Name of a content (Blog, Content Page, etc.). The vulnerability is exploited when updating or removing public access of a content. | ||
| CVE-2026-46609 | Med | 0.30 | 4.6 | 0.00 | Jun 10, 2026 | Umbraco is an ASP.NET CMS. From version 14.0.0 to before version 17.4.0, authenticated users are able to inject HTML into an input field, which is rendered in the confirmation dialog without proper output encoding. This issue has been patched in version 17.4.0. | ||
| CVE-2024-48927 | Med | 0.30 | 4.6 | 0.00 | Oct 22, 2024 | Umbraco, a free and open source .NET content management system, has a remote code execution issue in versions on the 13.x branch prior to 13.5.2, 10.x prior to 10.8.7, and 8.x prior to 8.18.15. There is a potential risk of code execution for Backoffice users when they… | ||
| CVE-2025-48953 | Med | 0.29 | 5.5 | 0.00 | Jun 3, 2025 | Umbraco is an ASP.NET content management system (CMS). Starting in version 14.0.0 and prior to versions 15.4.2 and 16.0.0, it's possible to upload a file that doesn't adhere with the configured allowable file extensions via a manipulated API request. The issue is patched in… | ||
| CVE-2017-15280 | Med | 0.29 | 5.5 | 0.01 | Oct 12, 2017 | XML external entity (XXE) vulnerability in Umbraco CMS before 7.7.3 allows attackers to obtain sensitive information by reading files on the server or sending TCP requests to intranet hosts (aka SSRF), related to Umbraco.Web/umbraco.presentation/umbraco/dialogs/importDocumenttype… | ||
| CVE-2026-46616 | Med | 0.28 | 5.4 | 0.00 | Jun 10, 2026 | Umbraco is an ASP.NET CMS. Prior to versions 13.14.0 and 17.4.0, some of the Surface Controllers in the CMS provide to support member related operations fail to validate redirect URLs, making Razor templates that derive 'RedirectUrl' from user-controlled query parameters… | ||
| CVE-2025-24011 | Med | 0.28 | 5.3 | 0.01 | Jan 21, 2025 | Umbraco is a free and open source .NET content management system. Starting in version 14.0.0 and prior to versions 14.3.2 and 15.1.2, it's possible to determine whether an account exists based on an analysis of response codes and timing of Umbraco management API responses.… | ||
| CVE-2024-10761 | Med | 0.28 | 4.3 | 0.01 | Nov 4, 2024 | A vulnerability was found in Umbraco CMS up to 10.7.7/12.3.6/13.5.2/14.3.1/15.1.1. It has been classified as problematic. Affected is an unknown function of the file /Umbraco/preview/frame?id{} of the component Dashboard. The manipulation of the argument culture leads to cross… | ||
| CVE-2024-43377 | Med | 0.28 | 5.4 | 0.00 | Aug 20, 2024 | Umbraco CMS is an ASP.NET CMS. An authenticated user can access a few unintended endpoints. This issue is fixed in 14.1.2. | ||
| CVE-2023-48313 | Med | 0.28 | 4.3 | 0.00 | Dec 12, 2023 | Umbraco is an ASP.NET content management system (CMS). Starting in 10.0.0 and prior to versions 10.8.1 and 12.3.4, Umbraco contains a cross-site scripting (XSS) vulnerability enabling attackers to bring malicious content into a website or application. Versions 10.8.1 and 12.3.4… | ||
| CVE-2023-48227 | Med | 0.28 | 4.3 | 0.00 | Dec 12, 2023 | Umbraco is an ASP.NET content management system (CMS). Starting in version 8.0.0 and prior to versions 8.18.10, 10.7.0, and 12.3.0, Backoffice users with send for approval permission but not publish permission are able to publish in some scenarios. Versions 8.18.10, 10.7.0, and… | ||
| CVE-2020-7210 | Med | 0.28 | 4.3 | 0.01 | Jan 23, 2020 | Umbraco CMS 8.2.2 allows CSRF to enable/disable or delete user accounts. |
- risk 0.40cvss 6.1epss 0.01
Multiple cross-site scripting (XSS) vulnerabilities in Umbraco before 7.4.0 allow remote attackers to inject arbitrary web script or HTML via the name parameter to (1) the media page, (2) the developer data edit page, or (3) the form page.
- risk 0.35cvss 5.4epss 0.00
Umbraco is an ASP.NET CMS. From 14.0.0 to before 16.5.1 and 17.2.2, A broken object-level authorization vulnerability exists in a backoffice API endpoint that allows authenticated users to assign domain-related data to content nodes without proper authorization checks. The issue…
- risk 0.35cvss 6.5epss 0.00
A stored cross-site scripting (XSS) vulnerability in Umbraco CMS v14.3.1 allows attackers to execute arbitrary web scripts or HTML via a crafted payload. NOTE: This has been disputed by the vendor since this potential attack is only possible via authenticated users who have been…
- risk 0.35cvss 5.4epss 0.00
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…
- risk 0.35cvss 5.4epss 0.01
A stored XSS vulnerability exists in Umbraco CMS <= 8.9.1 or current. An authenticated user can inject arbitrary JavaScript code into iframes when editing content using the TinyMCE rich-text editor, as TinyMCE is configured to allow iframes by default in Umbraco CMS.
- risk 0.34cvss 5.3epss 0.00
Umbraco CMS v8.14.1 contains a server-side request forgery vulnerability that allows attackers to manipulate baseUrl parameters in multiple dashboard and help controller endpoints. Attackers can craft malicious requests to the GetContextHelpForPage, GetRemoteDashboardContent,…
- risk 0.34cvss 5.3epss 0.01
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.
- risk 0.33cvss 6.1epss 0.00
Umbraco is an ASP.NET CMS used by more than 730.000 websites. Umbraco has an endpoint that is vulnerable to open redirects. The endpoint is protected so it requires the user to be signed into backoffice before the vulnerable is exposed. This vulnerability has been patched in…
- risk 0.31cvss 4.8epss 0.01
Persistent cross-site scripting (XSS) vulnerability in Umbraco CMS 7.12.3 allows authenticated users to inject arbitrary web script via the Header Name of a content (Blog, Content Page, etc.). The vulnerability is exploited when updating or removing public access of a content.
- risk 0.30cvss 4.6epss 0.00
Umbraco is an ASP.NET CMS. From version 14.0.0 to before version 17.4.0, authenticated users are able to inject HTML into an input field, which is rendered in the confirmation dialog without proper output encoding. This issue has been patched in version 17.4.0.
- risk 0.30cvss 4.6epss 0.00
Umbraco, a free and open source .NET content management system, has a remote code execution issue in versions on the 13.x branch prior to 13.5.2, 10.x prior to 10.8.7, and 8.x prior to 8.18.15. There is a potential risk of code execution for Backoffice users when they…
- risk 0.29cvss 5.5epss 0.00
Umbraco is an ASP.NET content management system (CMS). Starting in version 14.0.0 and prior to versions 15.4.2 and 16.0.0, it's possible to upload a file that doesn't adhere with the configured allowable file extensions via a manipulated API request. The issue is patched in…
- risk 0.29cvss 5.5epss 0.01
XML external entity (XXE) vulnerability in Umbraco CMS before 7.7.3 allows attackers to obtain sensitive information by reading files on the server or sending TCP requests to intranet hosts (aka SSRF), related to Umbraco.Web/umbraco.presentation/umbraco/dialogs/importDocumenttype…
- risk 0.28cvss 5.4epss 0.00
Umbraco is an ASP.NET CMS. Prior to versions 13.14.0 and 17.4.0, some of the Surface Controllers in the CMS provide to support member related operations fail to validate redirect URLs, making Razor templates that derive 'RedirectUrl' from user-controlled query parameters…
- risk 0.28cvss 5.3epss 0.01
Umbraco is a free and open source .NET content management system. Starting in version 14.0.0 and prior to versions 14.3.2 and 15.1.2, it's possible to determine whether an account exists based on an analysis of response codes and timing of Umbraco management API responses.…
- risk 0.28cvss 4.3epss 0.01
A vulnerability was found in Umbraco CMS up to 10.7.7/12.3.6/13.5.2/14.3.1/15.1.1. It has been classified as problematic. Affected is an unknown function of the file /Umbraco/preview/frame?id{} of the component Dashboard. The manipulation of the argument culture leads to cross…
- risk 0.28cvss 5.4epss 0.00
Umbraco CMS is an ASP.NET CMS. An authenticated user can access a few unintended endpoints. This issue is fixed in 14.1.2.
- risk 0.28cvss 4.3epss 0.00
Umbraco is an ASP.NET content management system (CMS). Starting in 10.0.0 and prior to versions 10.8.1 and 12.3.4, Umbraco contains a cross-site scripting (XSS) vulnerability enabling attackers to bring malicious content into a website or application. Versions 10.8.1 and 12.3.4…
- risk 0.28cvss 4.3epss 0.00
Umbraco is an ASP.NET content management system (CMS). Starting in version 8.0.0 and prior to versions 8.18.10, 10.7.0, and 12.3.0, Backoffice users with send for approval permission but not publish permission are able to publish in some scenarios. Versions 8.18.10, 10.7.0, and…
- risk 0.28cvss 4.3epss 0.01
Umbraco CMS 8.2.2 allows CSRF to enable/disable or delete user accounts.
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