CVE-2024-53803 MEDIUM

CVE-2024-53803: WordPress WP Mailster plugin <= 1.8.16.0 - Broken Access Control vulnerability

Vendor Brandtoss

Product WP Mailster

Weakness CWE-862 · Missing authorization

Published December 6, 2024

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

6.5/10

Attack vector Network

Attack complexity Low

Privileges required Low

User interaction None

Confidentiality None

Integrity None

CVSS vector

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

What the vulnerability does

01Description

Missing Authorization vulnerability in brandtoss WP Mailster wp-mailster allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects WP Mailster: from n/a through <= 1.8.16.0.

Explanation of Vulnerability in Simple Terms

02Summary

WP Mailster versions up to 1.8.16.0 lack proper authorization checks, allowing authenticated users with low privileges to disrupt the site's availability. An attacker with a basic user account can trigger a denial-of-service condition without requiring user interaction. The vulnerability affects the plugin's core functionality and may impact site stability.

What an attacker can do

03Attacker Capabilities

An authenticated user can make the site unavailable or unresponsive.

Potential impact on your site

04Site Impact

Site availability may be disrupted; legitimate users may experience downtime or service interruption.

Conditions required to exploit

05Prerequisites

Attacker needs a low-privilege user account (e.g., subscriber or contributor role).

Key dates

06Disclosure timeline

December 6, 2024 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2024-53803 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/862.html AskarLabs — CWE-862 write-up Missing Authorization

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