CRITICAL

CVE-2026-111832

WP Mailster — WP Mailster

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.

CVSS10.0

EPSS0.4%

Exploit StatusNot Assessed

PublishedOct 21, 2026

Last ModifiedOct 21, 2026

VendorWP Mailster

ProductWP Mailster

Weakness (CWE)CWE-434

View on NVD

Vulnerability Timeline

PublishedOct 21, 2026

Last ModifiedOct 21, 2026

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References

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

More from WP Mailster in the catalogue.

CVE-2026-111830WP MailsterPublished Oct 22, 2026 CVE-2026-111829WP MailsterPublished Oct 19, 2026 CVE-2026-105055WP MailsterPublished Oct 05, 2026

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