MailEnable up to 10.53 AddressBook.aspx LoadCurAddresses AddressesCc cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in MailEnable up to 10.53. The affected element is the function LoadCurAddresses of the file /Mondo/lang/sys/Forms/AddressBook.aspx. The manipulation of the argument AddressesCc results in cross site scripting. This vulnerability is cataloged as CVE-2025-34399. The attack may be launched remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in MailEnable up to 10.53. Affected is the function LoadCurAddresses of the file /Mondo/lang/sys/Forms/AddressBook.aspx. The manipulation of the argument AddressesCc with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. CVE summarizes:

MailEnable versions prior to 10.54 contain a reflected cross-site scripting (XSS) vulnerability in the AddressesCc parameter of /Mondo/lang/sys/Forms/AddressBook.aspx. The AddressesCc value is not properly sanitized when processed via a GET request and is reflected within a <script> block in the JavaScript variable var sAddrCc. 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.

The weakness was shared by Mushroomsecteam. The advisory is shared for download at mailenable.com. This vulnerability is traded as CVE-2025-34399 since 04/15/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

By approaching the search of inurl:Mondo/lang/sys/Forms/AddressBook.aspx it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 10.54 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Google Hack: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: MailEnable 10.54

Timelineinfo

04/15/2025 CVE reserved
12/09/2025 +238 days Advisory disclosed
12/09/2025 +0 days VulDB entry created
12/10/2025 +1 days VulDB entry last update

Sourcesinfo

Advisory: mailenable.com
Researcher: Mushroomsecteam
Status: Confirmed

CVE: CVE-2025-34399 (🔒)
GCVE (CVE): GCVE-0-2025-34399
GCVE (VulDB): GCVE-100-335484

Entryinfo

Created: 12/09/2025 19:44
Updated: 12/10/2025 04:51
Changes: 12/09/2025 19:44 (70), 12/10/2025 04:51 (12)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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