CVE-2025-12848: Drupal Webform MF Module XSS via Malicious Filename
CVE-2025-12848 Published on November 26, 2025

XSS vulnerability when rendering filename in Webform Multiform
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.

NVD

Weakness Type

What is a XSS Vulnerability?

The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

CVE-2025-12848 has been classified to as a XSS vulnerability or weakness.


Products Associated with CVE-2025-12848

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Drupal
 

Affected Versions

Drupal Version 7.x is affected by CVE-2025-12848

Exploit Probability

EPSS
0.07%
Percentile
20.96%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.