CVE-2025-12848: webform multiple XSS — Fix

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.

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CVSS v3.1 Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
webform_multiple_file_upload_project	webform_multiple_file_upload	All
webform_multiple_file_upload_project	webform_multiple_file_upload	All
webform_multiple_file_upload_project	webform_multiple_file_upload	All
webform_multiple_file_upload_project	webform_multiple_file_upload	All
webform_multiple_file_upload_project	webform_multiple_file_upload	All
webform_multiple_file_upload_project	webform_multiple_file_upload	All

References

Advisories & Patches

https://www.drupal.org/node/3105204

Other References

https://d7es.tag1.com/security-advisories/webform-multiple-file-upload-critical-cross-site-scripting https://www.d7security.org/security-advisories/D7SECURITY-SA-CONTRIB-2025-001/ https://www.herodevs.com/vulnerability-directory/cve-2025-12848

Frequently Asked Questions

What is CVE-2025-12848? +

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. It has a CVSS v3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2025-12848? +

CVE-2025-12848 has a CVSS v3.1 score of 6.1 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-12848? +

CVE-2025-12848 affects products from webform_multiple_file_upload_project, specifically: webform_multiple_file_upload. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-12848? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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