{"id":"CVE-2026-111832","title":"WordPress WP Mailster plugin <= 1.9.1.0 - Arbitrary File Upload vulnerability","summary":"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.","severity":"critical","cvss":10,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","cvssSource":"cna","cwe":["CWE-434"],"vendor":"WP Mailster","product":"wp-mailster","affected":["wp-mailster <= 1.9.1.0"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-10-21T15:27:09.873855Z"},"published":"2026-10-21","updated":"2026-10-21","sourceUpdated":"2026-10-21T17:19:12.429Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111832","references":[{"url":"https://patchstack.com/database/wordpress/plugin/wp-mailster/vulnerability/wordpress-wp-mailster-plugin-1-9-1-0-arbitrary-file-upload-vulnerability?_s_id=cve"}],"tags":["cve.org"],"ingestedAt":"2026-10-21T15:02:42.105Z","slug":"CVE-2026-111832","body":"## Overview\n\nUnrestricted 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.\n\n## Affected\n\n- `wp-mailster <= 1.9.1.0`\n\n## Remediation\n\nUpdate the WordPress WP Mailster plugin to the latest available version (at least 1.9.2.0).","depth":"midnight","depthScore":55,"depthScoreParts":{"impact":55,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}