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CVE-2025-34402— MailEnable < 10.54 Reflected XSS in FieldCc Parameter of AddressBook.aspx

Quick assessment

Affected
MailEnable MailEnable
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

MailEnable是澳大利亚MailEnable公司的一个基于 Windows 的商业电子邮件服务器。 MailEnable 10.54之前版本存在跨站脚本漏洞，该漏洞源于/Mondo/lang/sys/Forms/AddressBook.aspx中FieldCc参数清理不当，可能导致反射型跨站脚本攻击。

AI Predicted 4.3 Difficulty: Easy EPSS 0.39% · P31

Affected Version Matrix 1

VendorProduct Version RangeStatus
MailEnable MailEnable < 10.54 affected
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I. Basic Information for CVE-2025-34402

Vulnerability Information
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Vulnerability Title
MailEnable < 10.54 Reflected XSS in FieldCc Parameter of AddressBook.aspx
Source: CVE Program / CVE List V5
Vulnerability Description
MailEnable versions prior to 10.54 contain a reflected cross-site scripting (XSS) vulnerability in the FieldCc parameter of /Mondo/lang/sys/Forms/AddressBook.aspx. The FieldCc value is not properly sanitized when processed via a GET request and is reflected inside a <script> block in the JavaScript variable var CCFieldProvided. By supplying a crafted payload that terminates the existing LoadCurAddresses() 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
MailEnable 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MailEnable是澳大利亚MailEnable公司的一个基于 Windows 的商业电子邮件服务器。 MailEnable 10.54之前版本存在跨站脚本漏洞，该漏洞源于/Mondo/lang/sys/Forms/AddressBook.aspx中FieldCc参数清理不当，可能导致反射型跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
MailEnable MailEnable 0 ~ 10.54 -

II. Public POCs for CVE-2025-34402

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III. Intelligence Information for CVE-2025-34402

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Vendor Pages for CVE-2025-34402 (1)

Other References for CVE-2025-34402 (1)

Same Patch Batch · MailEnable · 2025-12-09 · 14 CVEs total

CVE-2025-34400 MailEnable < 10.54 Reflected XSS in AddressesTo Parameter of AddressBook.aspx
CVE-2025-34404 MailEnable < 10.54 Reflected XSS in InstanceScope Parameter of CAL/compose.aspx
CVE-2025-34396 MailEnable < 10.54 DLL Hijacking via Unsafe Loading of MEAINFY.DLL
CVE-2025-34397 MailEnable < 10.54 Reflected XSS in Message Parameter of Mobile/Compose.aspx
CVE-2025-34403 MailEnable < 10.54 Reflected XSS in FieldTo Parameter of AddressBook.aspx
CVE-2025-34409 MailEnable < 10.54 Reflected XSS in Failed Parameter of MAI/AddRecipientsResult.aspx
CVE-2025-34398 MailEnable < 10.54 Reflected XSS in AddressesBcc Parameter of AddressBook.aspx
CVE-2025-34407 MailEnable < 10.54 Reflected XSS in theme Parameter of Statistics.aspx
CVE-2025-34406 MailEnable < 10.54 Reflected XSS in Id Parameter of Mobile/ContactDetails.aspx
CVE-2025-34408 MailEnable < 10.54 Reflected XSS in Added Parameter of MAI/AddRecipientsResult.aspx
CVE-2025-34399 MailEnable < 10.54 Reflected XSS in AddressesCc Parameter of AddressBook.aspx
CVE-2025-34401 MailEnable < 10.54 Reflected XSS in FieldBcc Parameter of AddressBook.aspx
CVE-2025-34425 MailEnable < 10.54 Reflected XSS in WindowContext Parameter of MAI/compose.aspx

IV. Related Vulnerabilities

Same product: MailEnable
Same vendor: MailEnable
Same weakness: CWE-79

V. Comments for CVE-2025-34402

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