MailArchiver, CVE-2026-2721

CVE, Research URL: CVE-2026-2721
Home page URL: Security reports for MailArchiver
Application: MailArchiver
Published on: Mar 07, 2026
Research Description: The MailArchiver plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 4.4.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Affected versions: max 4.5.0.
Status: vulnerable