Umbraco <7.4.0- Server-Side Request Forgery

Umbraco before version 7.4.0 contains a server-side request forgery vulnerability in feedproxy.aspx that allows attackers to send arbitrary HTTP GET requests via http://local/Umbraco/feedproxy.aspx?url=http://127.0.0.1:80/index. id: CVE-2015-8813 info: name: Umbraco 7.4.0- Server-Side Request...

CVE-2019-25137-RCE

CVE-2019-25137-RCE CVE-2019-25137 is an Umbraco RCE vulnerability, the script within this repo is slightly altered This exploit script is based on script by Alexandre ZANNI EDB-ID 49488. It is slightly altered, changed the flow to skip token extraction before login, performed the login first...

CVE-2019-25137-Version-Research

CVE-2019-25137 Affected Version Research CVE-2019-25137 Overview CVE-2019-25137 is a XSLT injection vulnerability in Umbraco CMS. The vulnerability is present in the XSLT Extensive Stylesheet Language Transformations Visualizer webpage. The vulnerable URI for this webpage is...

Umbraco-RCE

Umbraco RCE exploit / PoC Umbraco CMS 7.12.4 - Authenticated Remote Code Execution EDB-49488 PacketStorm WLB-2020080012 Usage $ python exploit.py -h usage: exploit.py -h -u USER -p PASS -i URL -c CMD -a ARGS Umbraco authenticated RCE optional arguments: -h, --help show this help message and exit ...

CVE-2025-24011-PoC

Proof of concept for CVE-2025-24011 based on https://github.com/advisories/GHSA-hmg4-wwm5-p999 This toool has been tested on Umbraco version 15.1.1 and 13.7.2 on Ubuntu 24.04.2 LTS Usernames in Umbraco are as I understand it e-mails. This tools accepts a list of "usernames" -f and a url -u eg...

GHSA-WR57-HQMP-FGVH Umbraco: Delivery API leaks protected (Public Access) content through Content Picker / Multi-Node Tree Picker expansion

The Content Delivery API enforces member / Public Access protection only at the controller layer, against the node that is directly requested. When a public unprotected node references a protected node through a Content Picker or Multi-Node Tree Picker including those nested inside Block List,...

Umbraco: Delivery API leaks protected (Public Access) content through Content Picker / Multi-Node Tree Picker expansion

The Content Delivery API enforces member / Public Access protection only at the controller layer, against the node that is directly requested. When a public unprotected node references a protected node through a Content Picker or Multi-Node Tree Picker including those nested inside Block List,...

CVE-2026-69197

Umbraco is an ASP.NET CMS. Prior to 13.15.1, 17.5.3, and 18.0.2, the Content Delivery API applies member and Public Access checks to the directly requested node but not to referenced nodes serialized through Content Picker or Multi-Node Tree Picker properties, including pickers nested in Block...

CVE-2026-69197 Umbraco: Delivery API leaks protected (Public Access) content through Content Picker / Multi-Node Tree Picker expansion

Umbraco is an ASP.NET CMS. Prior to 13.15.1, 17.5.3, and 18.0.2, the Content Delivery API applies member and Public Access checks to the directly requested node but not to referenced nodes serialized through Content Picker or Multi-Node Tree Picker properties, including pickers nested in Block...

CVE-2026-69197 Umbraco: Delivery API leaks protected (Public Access) content through Content Picker / Multi-Node Tree Picker expansion

Umbraco is an ASP.NET CMS. Prior to 13.15.1, 17.5.3, and 18.0.2, the Content Delivery API applies member and Public Access checks to the directly requested node but not to referenced nodes serialized through Content Picker or Multi-Node Tree Picker properties, including pickers nested in Block...

CVE-2026-69197

Umbraco CMS (ASP.NET) contains an authorization bypass in the Content Delivery API prior to 13.15.1, 17.5.3, and 18.0.2 . Member and Public Access checks are applied to the directly requested node but not to referenced nodes serialized through Content Picker or Multi-Node Tree Picker properties, ...

CVE-2026-69197 Umbraco: Delivery API leaks protected (Public Access) content through Content Picker / Multi-Node Tree Picker expansion

Umbraco is an ASP.NET CMS. Prior to 13.15.1, 17.5.3, and 18.0.2, the Content Delivery API applies member and Public Access checks to the directly requested node but not to referenced nodes serialized through Content Picker or Multi-Node Tree Picker properties, including pickers nested in Block...

EUVD-2026-81902

Umbraco is an ASP.NET CMS. Prior to 13.15.1, 17.5.3, and 18.0.2, the Content Delivery API applies member and Public Access checks to the directly requested node but not to referenced nodes serialized through Content Picker or Multi-Node Tree Picker properties, including pickers nested in Block...

CVE-2026-69197: Exposure of Sensitive Information to an Unauthorized Actor

Umbraco is an ASP.NET CMS. Prior to 13.15.1, 17.5.3, and 18.0.2, the Content Delivery API applies member and Public Access checks to the directly requested node but not to referenced nodes serialized through Content Picker or Multi-Node Tree Picker properties, including pickers nested in Block...

CVE-2026-46609

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-2026-46616

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 vulnerable to malicious...

CVE-2026-46609

CVE-2026-46609 affects Umbraco CMS (ASP.NET). From 14.0.0 up to before 17.4.0, authenticated users can inject HTML into an input field, which is rendered in the backoffice confirmation dialog without proper output encoding, enabling a Cross‑Site Scripting (XSS) vector. The issue is mitigated by u...

EUVD-2026-36070

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-2026-46609 Umbraco.Cms: XSS/HTML Injection in Umbraco Backoffice confirmation dialog

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-2026-46609 Umbraco.Cms: XSS/HTML Injection in Umbraco Backoffice confirmation dialog

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...