CVE-2025-53428 HIGH

CVE-2025-53428: WordPress Simple User Registration plugin <= 6.8 - Privilege Escalation vulnerability

Vendor N-Media
Product Simple User Registration
Weakness CWE-266
Published October 22, 2025
Last update April 28, 2026

CVSS base score

8.8/10
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:U/C:H/I:H/A:H

What the vulnerability does

01Description

Incorrect Privilege Assignment vulnerability in N-Media Simple User Registration wp-registration allows Privilege Escalation.This issue affects Simple User Registration: from n/a through <= 6.8.

Explanation of Vulnerability in Simple Terms

02Summary

Simple User Registration versions 6.8 and earlier contain an improper privilege escalation vulnerability. An authenticated user with low privileges can read, modify, or delete sensitive data and disrupt site functionality. The vulnerability requires only network access and no user interaction. Sites running affected versions should update immediately.

What an attacker can do

03Attacker Capabilities

Read, modify, or delete sensitive data; disrupt site availability.

Potential impact on your site

04Site Impact

User accounts and site data are at risk; attackers with basic access can escalate to admin-level actions.

Conditions required to exploit

05Prerequisites

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

Key dates

06Disclosure timeline

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