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CVE-2025-23041— Short and Long Answer Fields Are Not Validated Server-Side For Maximum Length in Umbraco.Forms

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是一款表单构建工具。 Umbraco Forms存在输入验证错误漏洞，该漏洞源于短长答案字段字符限制仅客户端验证，可能导致数据注入攻击。

CVSS 5.8 · Medium EPSS 0.38% · P29

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-23041

Vulnerability Information
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Vulnerability Title
Short and Long Answer Fields Are Not Validated Server-Side For Maximum Length in Umbraco.Forms
Source: CVE Program / CVE List V5
Vulnerability Description
Umbraco.Forms is a web form framework written for the nuget ecosystem. Character limits configured by editors for short and long answer fields are validated only client-side, not server-side. This issue has been patched in versions 8.13.16, 10.5.7, 13.2.2, and 14.1.2. Users are advised to upgrade. There are no known workarounds for this issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Umbraco Forms 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Umbraco Forms是一款表单构建工具。 Umbraco Forms存在输入验证错误漏洞，该漏洞源于短长答案字段字符限制仅客户端验证，可能导致数据注入攻击。
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.Forms.Issues < 8.13.16 -

II. Public POCs for CVE-2025-23041

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III. Intelligence Information for CVE-2025-23041

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Vendor Advisories for CVE-2025-23041 (1)

IV. Related Vulnerabilities

Same product: Umbraco.Forms.Issues
Same vendor: umbraco
Same weakness: CWE-20

V. Comments for CVE-2025-23041

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