CVE-2026-111832

WordPress WP Mailster plugin <= 1.9.1.0 - Arbitrary File Upload vulnerability

State: Published
Severity: 10.0 Critical
Published: Oct 21, 2026
Updated: Oct 21, 2026
Reserved: Oct 17, 2026

Description

Unrestricted Upload of File with Dangerous Type vulnerability in WP Mailster WP Mailster wp-mailster allows Upload a Web Shell to a Web Server.This issue affects WP Mailster: from n/a through 1.9.1.0.

Scores

CVSS	Score	Vector	Source
3.1	10.0 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H	Patchstack

Weaknesses

CWE-434 Unrestricted Upload of File with Dangerous Type

Affected Products

Product	Versions
WP MailsterWP Mailster	1.9.1.0 and earlierAffectedfrom 1.9.2.0Not affected

References

https://patchstack.com/database/wordpress/plugin/wp-mailster/vulnerability/wordpress-wp-mailster-plugin-1-9-1-0-arbitrary-file-upload-vulnerability?_s_id=cvevdb-entry

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