CRITICAL 10.0 CVE-2026-111832 Published 21 Oct 2026

WP Mailster Plugin Arbitrary File Upload Vulnerability

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The WP Mailster plugin is affected by an unrestricted upload of a file with dangerous type vulnerability. This flaw allows an attacker to upload a web shell to the web server.

Affected versions:

WP Mailster from n/a through 1.9.1.0

Reference: CVE-2026-111832 on NVD

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