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CVE-2025-47280— Umbraco.Forms has HTML injection vulnerability in 'Send email' workflow

Quick assessment

Affected
umbraco Umbraco.Forms.Issues
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 Forms是Umbraco公司的一款表单构建工具。 Umbraco Forms 7.x至13.4.2和15.1.2之前版本存在安全漏洞，该漏洞源于发送邮件工作流未对用户提供的字段值进行HTML编码，可能导致绕过垃圾邮件和电子邮件客户端安全系统。

AI Predicted 5.3 Difficulty: Easy EPSS 0.29% · P19
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I. Basic Information for CVE-2025-47280

Vulnerability Information
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Vulnerability Title
Umbraco.Forms has HTML injection vulnerability in 'Send email' workflow
Source: CVE Program / CVE List V5
Vulnerability Description
Umbraco Forms is a form builder that integrates with the Umbraco content management system. Starting in the 7.x branch and prior to versions 13.4.2 and 15.1.2, the 'Send email' workflow does not HTML encode the user-provided field values in the sent email message, making any form with this workflow configured vulnerable, as it allows sending the message from a trusted system and address, potentially bypassing spam and email client security systems. This issue affects all (supported) versions Umbraco Forms and is patched in 13.4.2 and 15.1.2. Unpatched or unsupported versions can workaround this issue by using the `Send email with template (Razor)` workflow instead or writing a custom workflow type. To avoid accidentally using the vulnerable workflow again, the `SendEmail` workflow type can be removed using a composer available in the GitHub Security Advisory for this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:H/SA:N/E:U
Source: CVE Program / CVE List V5
Vulnerability Type
对输出编码和转义不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Umbraco Forms 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Umbraco Forms是Umbraco公司的一款表单构建工具。 Umbraco Forms 7.x至13.4.2和15.1.2之前版本存在安全漏洞，该漏洞源于发送邮件工作流未对用户提供的字段值进行HTML编码，可能导致绕过垃圾邮件和电子邮件客户端安全系统。
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.Forms.Issues >= 7.0.0, < 13.4.2 -

II. Public POCs for CVE-2025-47280

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III. Intelligence Information for CVE-2025-47280

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IV. Related Vulnerabilities

Same product: Umbraco.Forms.Issues
Same vendor: umbraco
Same weakness: CWE-116

V. Comments for CVE-2025-47280

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