CVE-2026-105055

Deferred Deferred - Pending Action

BaseFortify

Publication date: 2026-10-05

Last updated on: 2026-10-06

Assigner: Patchstack

Description

Missing Authorization vulnerability in WP Mailster WP Mailster wp-mailster allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects WP Mailster: from n/a through 1.9.0.0.

CVSS Scores

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Meta Information

Published

2026-10-05

Last Modified

2026-10-06

Generated

2026-10-19

AI Q&A

2026-10-05

EPSS Evaluated

2026-10-18

NVD

CVE-2026-105055

EUVD

EUVD-2026-92312

Affected Vendors & Products

Vendor	Product	Version / Range
WP	Mailster	WP Mailster 0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-862	The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Attack-Flow Graph

Executive Summary

This vulnerability is a Missing Authorization issue in the WP Mailster plugin for WordPress. It allows attackers to exploit incorrectly configured access control security levels in versions up to 1.9.0.0. The flaw enables unauthorized access to certain plugin functionalities due to improper permission checks.

Detection Guidance

This vulnerability is specific to the WP Mailster plugin and involves missing authorization checks. To detect it, inspect the plugin version installed on your WordPress site. If it is version 1.9.0.0 or below, the system is vulnerable. Check WordPress admin panel for the plugin version or use commands like 'wp plugin list' in WP-CLI to verify.

Impact Analysis

An attacker could exploit this to access sensitive data or perform unauthorized actions through the plugin. Since the plugin is for WordPress, it may affect websites using this plugin, potentially leading to data leaks or misuse of email functionality.

Compliance Impact

This vulnerability could lead to unauthorized access to user data, which may violate GDPR or HIPAA requirements for data protection and access controls. Organizations using this plugin may face compliance risks if data is exposed due to the flaw.

Mitigation Strategies

Update WP Mailster to the latest version (1.9.0.0 or later) to address the missing authorization vulnerability. If an update is not available, consider disabling the plugin temporarily until a patch is released.

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