CVE-2026-111832

WP Mailster

Published 21 Oct 2026 · updated 21 Oct 2026 · Deferred

10.0 Critical · CVSS 3.1, patchstack.com

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.

References

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