Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2025-12848

Severity CVSS v4.0:
HIGH
Type:
CWE-79 Cross-Site Scripting (XSS)
Publication date:
26/11/2025
Last modified:
05/12/2025

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<br /> filename containing JavaScript code (e.g., "") to a Webform node with a Multifile field where file type validation is disabled. This allows the execution of arbitrary scripts<br /> in the context of the victim&amp;#39;s browser.<br /> <br /> 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.

Impact

Vector 4.0
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 CVSS v4.0 Severity and Metrics:

Base Score: 7.00 HIGH
Vector: 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

Attack Vector (AV): Network
Attack Complexity (AC): Low
Attack Requirements (AT): None
Privileges Required (PR): None
User Interaction (UI): Active
Confidentiality (VC): Low
Integrity (VI): Low
Availability (VA): High
Confidentiality (SC): None
Integrity (SI): None
Availability (SA): None
Safety (S): Negligible
Recovery (R): User
Value Density (V): Diffuse
Vulnerability Response Effort (RE): Low
Provider Urgency (U): Amber

Base Score 4.0
7.00
Severity 4.0
HIGH
Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 6.10 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Changed
Confidentiality (C): Low
Integrity (I): Low
Availability (A): None

Base Score 3.x
6.10
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:webform_multiple_file_upload_project:webform_multiple_file_upload:7.x-1.2:*:*:*:*:drupal:*:*
cpe:2.3:a:webform_multiple_file_upload_project:webform_multiple_file_upload:7.x-1.3:*:*:*:*:drupal:*:*
cpe:2.3:a:webform_multiple_file_upload_project:webform_multiple_file_upload:7.x-1.4:*:*:*:*:drupal:*:*
cpe:2.3:a:webform_multiple_file_upload_project:webform_multiple_file_upload:7.x-1.5:*:*:*:*:drupal:*:*
cpe:2.3:a:webform_multiple_file_upload_project:webform_multiple_file_upload:7.x-1.6:*:*:*:*:drupal:*:*
cpe:2.3:a:webform_multiple_file_upload_project:webform_multiple_file_upload:7.x-1.x:dev:*:*:*:drupal:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools