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[ CVE-2026-111832 · Published 21 Oct 2026 ]

Vulnerability in WP Mailster

CVSS 10.0 EPSS <1%No fix listed yet

[ Why it matters ]Priority signals

  • Critical severity: CVSS 10.0

[ Description ]Official 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.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References