PT-2025-50147 · Mailenable · Mailenable

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CVE-2025-34409

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Published

2025-12-09

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Updated

2025-12-10

CVSS v3.1

6.1

Medium

VectorAV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
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 Failed parameter of the ''/Mondo/lang/sys/Forms/MAI/AddRecipientsResult.aspx'' endpoint. The Failed 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 to close an existing HTML list element, insert attacker-controlled JavaScript, and comment 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 to version 10.54 or later.

Fix

XSS

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Weakness Enumeration

Related Identifiers

CVE-2025-34409

Affected Products

Mailenable