CVE-2025-12583 MEDIUM

CVE-2025-12583: Simple Downloads List <= 1.4.3 - Missing Authorization to Authenticated (Subscriber+) Stored Cross-Site Scripting

Vendor Neofix
Product Simple Downloads List
Weakness CWE-862 · Missing authorization
Published November 8, 2025
Last update April 8, 2026

CVSS base score

6.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

The Simple Downloads List plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'wp_ajax_neofix_sdl_edit' AJAX endpoint along with many others in all versions up to, and including, 1.4.3. This makes it possible for authenticated attackers, with Subscriber-level access and above, to alter many of the plugin's settings/downloads and inject malicious web scripts.

Explanation of Vulnerability in Simple Terms

02Summary

Simple Downloads List versions 1.4.3 and earlier lack proper authorization checks, allowing authenticated users to read and modify data they should not have access to. The vulnerability affects multiple data types within the plugin and can impact other users' information. A low-privilege account is required to exploit this issue.

What an attacker can do

03Attacker Capabilities

Read and modify other users' data without authorization.

Potential impact on your site

04Site Impact

Authenticated users can access and alter sensitive data belonging to other users or the site.

Conditions required to exploit

05Prerequisites

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

Key dates

06Disclosure timeline

November 8, 2025 CVE published
April 8, 2026 Record updated

Related vulnerabilities

08Related CVE