CVE 5.3 MEDIUM

MailEnable < 10.54 Reflected XSS in AddressesTo Parameter of AddressBook.aspx_CVE-2025-34400

5.3 / 10
MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

Description

MailEnable versions prior to 10.54 contain a reflected cross-site scripting (XSS) vulnerability in the AddressesTo parameter of /Mondo/lang/sys/Forms/AddressBook.aspx. The AddressesTo value is not properly sanitized when processed via a GET request and is reflected within a <script> block in the response. By supplying a crafted payload that terminates the existing JavaScript function, inserts attacker-controlled script, and comments out remaining code, a remote attacker can execute arbitrary JavaScript in a victim’s browser when the victim attempts to send an email. Successful exploitation can redirect victims to malicious sites, steal non-HttpOnly cookies, inject arbitrary HTML or CSS, and perform actions as the authenticated user.

Basic Information

ID CVE-2025-34400
Source VulnCheck
Published Dec 9, 2025 at 18:09

Affected Product

Vendor MailEnable
Product MailEnable
Affected Versions MailEnable MailEnable 0

CWE Classification

References

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