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CVE-2025-12848— XSS vulnerability when rendering filename in Webform Multiform

Quick assessment

Affected
Drupal Drupal
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.

Drupal是Drupal社区的一套使用PHP语言开发的开源内容管理系统。 Drupal存在安全漏洞，该漏洞源于文件名渲染器中存在跨站脚本漏洞，可能导致执行任意脚本。

AI Predicted 6.1 Difficulty: Moderate EPSS 0.33% · P24
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I. Basic Information for CVE-2025-12848

Vulnerability Information
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Vulnerability Title
XSS vulnerability when rendering filename in Webform Multiform
Source: CVE Program / CVE List V5
Vulnerability Description
Webform Multiple File Upload module for Drupal 7.x contains a cross-site scripting (XSS) vulnerability in the file name renderer. An unauthenticated attacker can exploit this vulnerability by uploading a file with a malicious filename containing JavaScript code (e.g., "<img src=1 onerror=alert(document.domain)>") to a Webform node with a Multifile field where file type validation is disabled. This allows the execution of arbitrary scripts in the context of the victim's browser. The issue is present in a third-party library and has been addressed in a patch available at  https://github.com/fyneworks/multifile/pull/44 . Users are advised to apply the provided patch or update to a fixed version of the module.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/S:N/R:U/V:D/RE:L/U:Amber
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
Drupal 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Drupal是Drupal社区的一套使用PHP语言开发的开源内容管理系统。 Drupal存在安全漏洞，该漏洞源于文件名渲染器中存在跨站脚本漏洞，可能导致执行任意脚本。
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
Drupal Drupal 7.x-1.0 ~ 7.x-1.6 -

II. Public POCs for CVE-2025-12848

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III. Intelligence Information for CVE-2025-12848

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Vendor Advisories for CVE-2025-12848 (2)

News Coverage for CVE-2025-12848 (1)

IV. Related Vulnerabilities

Same product: Drupal
Same vendor: Drupal
Same weakness: CWE-79

V. Comments for CVE-2025-12848

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