CVE-2021-28975

WP Mailster 1.6.18.0 allows XSS when a victim opens a mail server's details in the mst_servers page, for a crafted server_host, server_name, or connection_parameter parameter.

• CWE-79

• https://www.compass-security.com/en/research/advisories/Third Party Advisory
• https://www.compass-security.com/fileadmin/Research/Advisories/2021-18_CSNC-2021-018-WPMailster_XSS_CSRF.txtExploit, Third Party Advisory
• https://www.compass-security.com/en/research/advisories/Third Party Advisory
• https://www.compass-security.com/fileadmin/Research/Advisories/2021-18_CSNC-2021-018-WPMailster_XSS_CSRF.txtExploit, Third Party Advisory

Published

Oct 21, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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