Vulnerability · Published Jun 3, 2025 · Assigned by Wordfence

CVE-2025-4392Shared Files <= 1.7.48 - Unauthenticated Stored Cross-Site Scripting via sanitize_file Function

High 7.2

In plain English

A high-severity cross-site scripting in Shared Files – Frontend File Upload Form & Secure File Sharing from anssilaitila. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 32% of all known vulnerabilities).

Severity (CVSS 3.1)7.2High

Exploit odds (30 days)0.4%top 68.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
anssilaitila	Shared Files – Frontend File Upload Form & Secure File Sharing	0 – through 1.7.48

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

In plain English

Official description

Affected products (as reported)

References