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CVE-2026-111829— WordPress WP Mailster plugin <= 1.9.1.0 - Local File Inclusion vulnerability

Quick assessment

Affected
WP Mailster WP Mailster
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WP Mailster 插件（wp-mailster）存在"PHP 程序中 include/require 语句的文件名控制不当”漏洞（即 PHP 远程文件包含漏洞），该问题导致攻击者能够执行 PHP 本地文件包含（Local File Inclusion, LFI）。此漏洞影响 WP Mailster 从未知版本至 1.9.1.0 版本。

CVSS 6.5 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
WP Mailster WP Mailster ≤ 1.9.1.0 affected
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I. Basic Information for CVE-2026-111829

Vulnerability Information
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Vulnerability Title
WordPress WP Mailster plugin <= 1.9.1.0 - Local File Inclusion vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in WP Mailster WP Mailster wp-mailster allows PHP Local File Inclusion.This issue affects WP Mailster: from n/a through 1.9.1.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
PHP程序中Include/Require语句包含文件控制不恰当(PHP远程文件包含)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
WP Mailster WP Mailster 0 ~ 1.9.1.0 -

II. Public POCs for CVE-2026-111829

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III. Intelligence Information for CVE-2026-111829

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Vendor Pages for CVE-2026-111829 (1)

IV. Related Vulnerabilities

Same product: WP Mailster
Same vendor: WP Mailster
Same weakness: CWE-98

V. Comments for CVE-2026-111829

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