Vulnerability Scan Result

Target:

http://mail.xixum.ai/

Scanned target: http://mail.xixum.ai/

Submitted: Mar 22, 2026 from JO

Public Scan

Scan mode: Passive (non-intrusive)

Summary

medium

Info

Low

Medium

High

Critical

Screenshot

Screenshot could not be taken.

Title:	Web Server's Default Page
Description:	No description found

IP Information

ip_address	35.155.206.23
country	US
network_name	Amazon.com, Inc.
asn	AS16509

Open Ports

22/tcp	ssh	OpenSSH 9.6p1 Ubuntu 3ubuntu13.15
25/tcp	smtp	Postfix smtpd -
53/tcp	domain	- -
80/tcp	http	nginx -
110/tcp	pop3	Dovecot pop3d -
143/tcp	imap	Dovecot imapd -
443/tcp	https	nginx -
465/tcp	smtp	Postfix smtpd -
993/tcp	imap	Dovecot imapd -
995/tcp	pop3	Dovecot pop3d -
8443/tcp	https	sw-cp-server -

Web Technologies

Software / Version	Category
Nginx	Web servers, Reverse proxies

Web Application Vulnerabilities

Evidence

URL	Response URL	Evidence
http://mail.xixum.ai/	http://mail.xixum.ai/	Communication is made over unsecure, unencrypted HTTP.

Vulnerability description

We noticed that the communication between the web browser and the server is done using the HTTP protocol, which transmits data unencrypted over the network.

Risk description

The risk is that an attacker who manages to intercept the communication at the network level can read and modify the data transmitted (including passwords, secret tokens, credit card information and other sensitive data).

Recommendation

We recommend you to reconfigure the web server to use HTTPS - which encrypts the communication between the web browser and the server.

Classification

CWE	CWE-319
OWASP Top 10 - 2017
OWASP Top 10 - 2021

Evidence

URL	Evidence
http://mail.xixum.ai/	Response headers do not include the Referrer-Policy HTTP security header as well as the `<meta/>` tag with name 'referrer' is not present in the response.

Vulnerability description

We noticed that the target application's server responses lack the Referrer-Policy HTTP header, which controls how much referrer information the browser will send with each request originated from the current web application.

Risk description

The risk is that if a user visits a web page (e.g. "http://example.com/pricing/") and clicks on a link from that page going to e.g. "https://www.google.com", the browser will send to Google the full originating URL in the `Referer` header, assuming the Referrer-Policy header is not set. The originating URL could be considered sensitive information and it could be used for user tracking.

Recommendation

The Referrer-Policy header should be configured on the server side to avoid user tracking and inadvertent information leakage. The value `no-referrer` of this header instructs the browser to omit the Referer header entirely.

Classification

CWE	CWE-693
OWASP Top 10 - 2017
OWASP Top 10 - 2021

Evidence

Software / Version	Category
Nginx	Web servers, Reverse proxies

Vulnerability description

We noticed that server software and technology details are exposed, potentially aiding attackers in tailoring specific exploits against identified systems and versions.

Risk description

The risk is that an attacker could use this information to mount specific attacks against the identified software type and version.

Recommendation

We recommend you to eliminate the information which permits the identification of software platform, technology, server and operating system: HTTP server headers, HTML meta information, etc.

Classification

CWE	CWE-200
OWASP Top 10 - 2017
OWASP Top 10 - 2021

Evidence

URL	Evidence
http://mail.xixum.ai/	Response headers do not include the X-Content-Type-Options HTTP security header

Vulnerability description

We noticed that the target application's server responses lack the X-Content-Type-Options header. This header is particularly important for preventing Internet Explorer from reinterpreting the content of a web page (MIME-sniffing) and thus overriding the value of the Content-Type header.

Risk description

The risk is that lack of this header could make possible attacks such as Cross-Site Scripting or phishing in Internet Explorer browsers.

Recommendation

We recommend setting the X-Content-Type-Options header such as `X-Content-Type-Options: nosniff`.

Classification

CWE	CWE-693
OWASP Top 10 - 2017
OWASP Top 10 - 2021

Evidence

URL	Evidence
http://mail.xixum.ai/	Response does not include the HTTP Content-Security-Policy security header or meta tag

Vulnerability description

We noticed that the target application lacks the Content-Security-Policy (CSP) header in its HTTP responses. The CSP header is a security measure that instructs web browsers to enforce specific security rules, effectively preventing the exploitation of Cross-Site Scripting (XSS) vulnerabilities.

Risk description

The risk is that if the target application is vulnerable to XSS, lack of this header makes it easily exploitable by attackers.

Recommendation

Configure the Content-Security-Header to be sent with each HTTP response in order to apply the specific policies needed by the application.

Classification

CWE	CWE-1021
OWASP Top 10 - 2017
OWASP Top 10 - 2021

Evidence

URL
Missing: http://mail.xixum.ai/.well-known/security.txt

Vulnerability description

We have noticed that the server is missing the security.txt file, which is considered a good practice for web security. It provides a standardized way for security researchers and the public to report security vulnerabilities or concerns by outlining the preferred method of contact and reporting procedures.

Risk description

There is no particular risk in not having a security.txt file for your server. However, this file is important because it offers a designated channel for reporting vulnerabilities and security issues.

Recommendation

We recommend you to implement the security.txt file according to the standard, in order to allow researchers or users report any security issues they find, improving the defensive mechanisms of your server.

Classification

CWE	CWE-1188
OWASP Top 10 - 2017
OWASP Top 10 - 2021

Evidence

URL	Method	Summary
http://mail.xixum.ai/	OPTIONS	We did a HTTP OPTIONS request. The server responded with a 200 status code and the header: `Allow: POST,OPTIONS,HEAD,GET` Request / Response

Vulnerability description

We have noticed that the webserver responded with an Allow HTTP header when an OPTIONS HTTP request was sent. This method responds to requests by providing information about the methods available for the target resource.

Risk description

The only risk this might present nowadays is revealing debug HTTP methods that can be used on the server. This can present a danger if any of those methods can lead to sensitive information, like authentication information, secret keys.

Recommendation

We recommend that you check for unused HTTP methods or even better, disable the OPTIONS method. This can be done using your webserver configuration.

Classification

CWE	CWE-16
OWASP Top 10 - 2017
OWASP Top 10 - 2021

Infrastructure Vulnerabilities

Evidence

We managed to detect a publicly accessible Post Office Protocol (POP3) service. Starting Nmap ( https://nmap.org ) at 2026-03-22 05:48 EET Nmap scan report for mail.xixum.ai (35.155.206.23) Host is up (0.14s latency). rDNS record for 35.155.206.23: ec2-35-155-206-23.us-west-2.compute.amazonaws.com

PORT STATE SERVICE VERSION 995/tcp open ssl/pop3 Dovecot pop3d |_pop3-capabilities: RESP-CODES AUTH-RESP-CODE UIDL CAPA TOP SASL(PLAIN LOGIN DIGEST-MD5 CRAM-MD5) PIPELINING USER APOP Service Info: Host: silly-buck.54-218-146-189.plesk.page

Service detection performed. Please report any incorrect results at https://nmap.org/submit/ . Nmap done: 1 IP address (1 host up) scanned in 8.06 seconds

Vulnerability description

We found that the Post Office Protocol (POP3) service is publicly accessible and doesn’t include STARTTLS capability. Email clients use the Post Office Protocol (POP) to download emails for user accounts. Some POP servers are initially set up to operate over an unsecured protocol. When email clients download email content through this plaintext protocol, it can pose a substantial risk to the organization's network, especially depending on which user account is set to receive the emails.

Risk description

Exposing this service online can enable attackers to conduct man-in-the-middle attacks, thereby gaining access to sensitive user credentials and the contents of emails. Given that POP3 operates via a plaintext protocol, the entirety of the data exchanged between the client and server is left unencrypted. This critical information could then be leveraged in further attacks on the organization's network.

Recommendation

We recommend turning off POP3 access over the Internet and instead using a Virtual Private Network (VPN) that mandates two-factor authentication (2FA). If the POP3 service is essential for business purposes, we recommend limiting access only from designated IP addresses using a firewall. Furthermore, activating STARTTLS capability (switching the connection to a secure communication) or utilizing Secure POP3 (POP3S) is recommended, as this protocol employs encryption.

Operating System	Accuracy
Linux 5.0 - 5.4	95%

Evidence

Software / Version	Category
Plesk	Hosting panels
Nginx	Web servers, Reverse proxies
RequireJS	JavaScript frameworks
Prototype	JavaScript frameworks

Vulnerability description

We noticed that server software and technology details are exposed, potentially aiding attackers in tailoring specific exploits against identified systems and versions.

Risk description

The risk is that an attacker could use this information to mount specific attacks against the identified software type and version.

Recommendation

We recommend you to eliminate the information which permits the identification of software platform, technology, server and operating system: HTTP server headers, HTML meta information, etc.

Evidence

Software / Version	Category
Plesk	Hosting panels
Nginx	Web servers, Reverse proxies
RequireJS	JavaScript frameworks
Prototype	JavaScript frameworks

Vulnerability description

We noticed that server software and technology details are exposed, potentially aiding attackers in tailoring specific exploits against identified systems and versions.

Risk description

The risk is that an attacker could use this information to mount specific attacks against the identified software type and version.

Recommendation

We recommend you to eliminate the information which permits the identification of software platform, technology, server and operating system: HTTP server headers, HTML meta information, etc.

Evidence

Domain Queried	DNS Record Type	Description	Value
mail.xixum.ai	A	IPv4 address	35.155.206.23

Risk description

An initial step for an attacker aiming to learn about an organization involves conducting searches on its domain names to uncover DNS records associated with the organization. This strategy aims to amass comprehensive insights into the target domain, enabling the attacker to outline the organization's external digital landscape. This gathered intelligence may subsequently serve as a foundation for launching attacks, including those based on social engineering techniques. DNS records pointing to services or servers that are no longer in use can provide an attacker with an easy entry point into the network.

Recommendation

We recommend reviewing all DNS records associated with the domain and identifying and removing unused or obsolete records.

Evidence

Software / Version	Category
Nginx	Web servers, Reverse proxies

Vulnerability description

We noticed that server software and technology details are exposed, potentially aiding attackers in tailoring specific exploits against identified systems and versions.

Risk description

The risk is that an attacker could use this information to mount specific attacks against the identified software type and version.

Recommendation

We recommend you to eliminate the information which permits the identification of software platform, technology, server and operating system: HTTP server headers, HTML meta information, etc.