CVE-2025-34407

MailEnable versions prior to 10.54 contain a reflected cross-site scripting (XSS) vulnerability in the theme parameter of /Mondo/lang/sys/Forms/Statistics.aspx. The theme value is insufficiently sanitized when processed via a GET request and is reflected in the response, allowing an attacker to break out of an existing iframe context and inject arbitrary script. A remote attacker can supply a crafted payload that closes the iframe tag, inserts attacker-controlled JavaScript, and comments out remaining code, leading to script execution in a victim’s browser when the victim visits a malicious link. Successful exploitation can redirect victims to malicious sites, steal non-HttpOnly cookies, inject arbitrary HTML or CSS, and perform actions as the authenticated user.

• CWE-79

• https://mailenable.com/Standard-ReleaseNotes.txtRelease Notes
• https://www.mailenable.com/Product
• https://www.vulncheck.com/advisories/mailenable-reflected-xss-in-theme-parameter-of-statistics-aspxThird Party Advisory

Published

Dec 9, 2025

Last Modified

Jun 17, 2026

Status

Analyzed

• 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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• CVE-2025-34411Rejected reason: This CVE ID has been rejected or withdrawn …
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