Mailenable · Mailenable · CVE-2025-34408
**Name of the Vulnerable Software and Affected Versions**
MailEnable versions prior to 10.54
**Description**
The software contains a reflected cross-site scripting (XSS) issue in the `Added` parameter of the ''/Mondo/lang/sys/Forms/MAI/AddRecipientsResult.aspx'' endpoint. The `Added` value is not properly sanitized when processed via a GET request and is reflected in the response, allowing an attacker to inject arbitrary script. An attacker can supply a crafted payload that closes an existing HTML list element, 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.
**Recommendations**
Update MailEnable to version 10.54 or later.