CVE-2025-4392

Shared Files <= 1.7.48 - Unauthenticated Stored Cross-Site Scripting via sanitize_file Function

Severity Score

7.2

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

The Shared Files – Frontend File Upload Form & Secure File Sharing plugin for WordPress is vulnerable to Stored Cross-Site Scripting via html File uploads in all versions up to, and including, 1.7.48 due to insufficient input sanitization and output escaping within the sanitize_file() function. This makes it possible for unauthenticated attackers to bypass the plugin’s MIME-only checks and inject arbitrary web scripts in pages that will execute whenever a user accesses the html file.

El complemento Shared Files – Frontend File Upload Form & Secure File Sharing para WordPress es vulnerable a Cross-Site Scripting Almacenado al subir archivos HTML en todas las versiones hasta la 1.7.48 incluida, debido a una depuración de entrada insuficiente y al escape de salida dentro de la función sanitize_file(). Esto permite a atacantes no autenticados eludir las comprobaciones de solo MIME del complemento e inyectar scripts web arbitrarios en las páginas que se ejecutarán al acceder un usuario al archivo HTML.

*Credits: Martin Martin

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2025-05-06 CVE Reserved
2025-06-02 CVE Published
2025-06-03 CVE Updated
2025-07-05 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CAPEC

References (4)

URL	Tag	Source
https://github.com/anssilaitila/shared-files/blob/master/admin/class-sf-admin-allow-more-file-types.php
https://plugins.trac.wordpress.org/changeset/3304053
https://wordpress.org/plugins/shared-files/#developers
https://www.wordfence.com/threat-intel/vulnerabilities/id/469a9c8a-0708-4c93-99d8-e9157a1f91f5?source=cve

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Anssilaitila Search vendor "Anssilaitila"		Shared Files – Frontend File Upload Form & Secure File Sharing Search vendor "Anssilaitila" for product "Shared Files – Frontend File Upload Form & Secure File Sharing"				<= 1.7.48 Search vendor "Anssilaitila" for product "Shared Files – Frontend File Upload Form & Secure File Sharing" and version " <= 1.7.48"		en		Affected