CVE-2025-22303 MEDIUM

CVE-2025-22303: WordPress WP Mailster plugin <= 1.8.17.0 - Sensitive Data Exposure vulnerability

Vendor Brandtoss
Product WP Mailster
Weakness CWE-201
Published January 7, 2025
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity None

CVSS vector

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

What the vulnerability does

01Description

Insertion of Sensitive Information Into Sent Data vulnerability in brandtoss WP Mailster wp-mailster allows Retrieve Embedded Sensitive Data.This issue affects WP Mailster: from n/a through <= 1.8.17.0.

Explanation of Vulnerability in Simple Terms

02Summary

WP Mailster versions up to 1.8.17.0 expose sensitive information through improper access controls. An unauthenticated attacker can read data that should be restricted, such as email addresses or configuration details. The vulnerability requires no user interaction and is remotely exploitable over the network.

What an attacker can do

03Attacker Capabilities

Read sensitive data like email addresses or plugin configuration without authentication.

Potential impact on your site

04Site Impact

Visitor and user email addresses or other restricted data may be exposed to anyone on the internet.

Conditions required to exploit

05Prerequisites

Network access to the WordPress site; no authentication or user interaction required.

Key dates

06Disclosure timeline

January 7, 2025 CVE published
April 28, 2026 Record updated