CVE-2025-23918 CRITICAL

CVE-2025-23918: WordPress Smallerik File Browser plugin <= 1.1 - Arbitrary File Upload vulnerability

Vendor Enrico Sandoli
Product Smallerik File Browser
Weakness CWE-434 · Unrestricted file upload
Published January 22, 2025
Last update April 28, 2026

CVSS base score

9.9/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Unrestricted Upload of File with Dangerous Type vulnerability in Enrico Sandoli Smallerik File Browser smallerik-file-browser allows Upload a Web Shell to a Web Server.This issue affects Smallerik File Browser: from n/a through <= 1.1.

Explanation of Vulnerability in Simple Terms

02Summary

Smallerik File Browser versions 1.1 and earlier allow authenticated users to upload files without restriction. An attacker with low-level access can upload malicious files to the server, potentially executing code or compromising the entire system. The vulnerability affects confidentiality, integrity, and availability across the application scope.

What an attacker can do

03Attacker Capabilities

Upload and execute malicious files on the server, gaining control over the site and its data.

Potential impact on your site

04Site Impact

Complete compromise of the site, data theft, malware injection, and potential lateral movement to other systems.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege user account on the application.

Key dates

06Disclosure timeline

January 22, 2025 CVE published
April 28, 2026 Record updated

Related vulnerabilities

08Related CVE