CVE-2025-24012— Umbraco Backoffice Components Have XSS/HTML Injection Vulnerability
Quick assessment
Affected
umbraco Umbraco-CMS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Umbraco是丹麦Umbraco公司的一套C#编写的开源的内容管理系统（CMS）。 Umbraco 14.0.0及之前版本存在跨站脚本漏洞，该漏洞源于经过身份验证的用户在查看某些本地化后台组件时，容易导致跨站脚本攻击。
Possible ATT&CK Techniques 1 AI
T1189 · Drive-by Compromise
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I. Basic Information for CVE-2025-24012
Vulnerability Information
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Vulnerability Title
Umbraco Backoffice Components Have XSS/HTML Injection Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
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, authenticated users are able to exploit a cross-site scripting vulnerability when viewing certain localized backoffice components. Versions 14.3.2 and 15.1.2 contain a patch.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Umbraco 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Umbraco是丹麦Umbraco公司的一套C#编写的开源的内容管理系统（CMS）。 Umbraco 14.0.0及之前版本存在跨站脚本漏洞，该漏洞源于经过身份验证的用户在查看某些本地化后台组件时，容易导致跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| umbraco | Umbraco-CMS | >= 14.0.0, < 14.3.2 | - |
|
II. Public POCs for CVE-2025-24012
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2025-24012 (1)
-
Merge commit from fork · umbraco/Umbraco-CMS@d4f8754 · GitHub x_refsource_MISC
Vendor Advisories for CVE-2025-24012 (1)
IV. Related Vulnerabilities
Same product: Umbraco-CMS
-
CVE-2026-69197
Umbraco: Delivery API leaks protected (Public Access) conten -
CVE-2026-46609
Umbraco.Cms: XSS/HTML Injection in Umbraco Backoffice confir -
CVE-2026-46616
Umbraco.Cms: Open Redirect Vulnerability in Surface Controll -
CVE-2026-31834
Umbraco Affected by Vertical Privilege Escalation via Missin -
CVE-2026-31833
Umbraco has Stored XSS in UFM Rendering Pipeline via Permiss
Same vendor: umbraco
-
CVE-2026-69197
Umbraco: Delivery API leaks protected (Public Access) conten -
CVE-2026-46609
Umbraco.Cms: XSS/HTML Injection in Umbraco Backoffice confir -
CVE-2026-46616
Umbraco.Cms: Open Redirect Vulnerability in Surface Controll -
CVE-2026-31834
Umbraco Affected by Vertical Privilege Escalation via Missin -
CVE-2026-31833
Umbraco has Stored XSS in UFM Rendering Pipeline via Permiss
Same weakness: CWE-79
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WordPress Premmerce Wishlist for WooCommerce plugin <= 1.1.1 -
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WordPress MaxGalleria plugin <= 6.5.3 - Cross Site Scripting
V. Comments for CVE-2025-24012
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