by Kastro
Paper/Archive/CVE-2026-111832

CVE-2026-111832

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

EPSS 0.4%CVSS 10.0
critical.is priorityof 100
37
CVSS 10.0 (CNA)10.0 / 10 × 3030.0Not in CISA KEV+300.0EPSS percentile 34.7.347 × 206.9No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
WP Mailster≤ 1.9.1.0–CNA

Scores by source

Patchstack (CNA)10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

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