Simple Downloads List <= 1.4.3 - Missing Authorization to Authenticated (Subscriber+) Stored Cross-Site Scripting
Strategic Overview
- Status
- Patched in 1.5.0
- Affected Plugin
- Simple Downloads List
- Affected Version
<= 1.4.3- CVSS
- 6.4Medium
- Weakness type
- CWE-862 · Missing Authorization
- CVE
CVE-2025-12583
At a glance
CVE-2025-12583 is a medium-severity Missing Authorization vulnerability in the Simple Downloads List WordPress plugin, affecting versions <= 1.4.3. It carries a CVSS score of 6.4 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 1.5.0; sites on affected versions should update now. Disclosed November 2025, reported by Md. Moniruzzaman Prodhan (NomanProdhan).
Vulnerability Overview
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.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.
CWE-862: Missing Authorization
Simple Downloads List <= 1.4.3 carries this weakness at wp_ajax_neofix_sdl_edit, and reaching it takes an account at Subscriber level or above. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.
Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Simple Downloads List the fix is 1.5.0: builds <= 1.4.3 are affected, anything from 1.5.0 onward is not.
Remediation
Update to version 1.5.0, or a newer patched version
How does WordSec protect against this?
Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Simple Downloads List 1.5.0 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
Other vulnerabilities in Simple Downloads List
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C