Vulnerability Scan Result
Title: | Consumer Startups funded by Y Combinator (YC) 2025 | Y Combinator |
Description: | Browse 100 of the top Consumer startups funded by Y Combinator. |
IP address | 104.22.6.236 |
Country | - |
AS number | AS13335 |
Net name | Cloudflare Inc |
IP address | 104.22.7.236 |
Country | - |
AS number | AS13335 |
Net name | Cloudflare Inc |
IP address | 172.67.5.232 |
Country | - |
AS number | AS13335 |
Net name | Cloudflare Inc |
80/tcp | http | Cloudflare http proxy |
443/tcp | https | cloudflare |
8080/tcp | http | Cloudflare http proxy |
8443/tcp | https-alt | cloudflare |
Software / Version | Category |
---|---|
Amplitude | Analytics |
Google Analytics UA | Analytics |
Inertia.js | JavaScript frameworks |
lit-element 4.1.1 | JavaScript libraries |
lit-html 3.2.1 | JavaScript libraries |
Google Maps | Maps |
Open Graph | Miscellaneous |
Ruby | Programming languages |
Ruby on Rails | Web frameworks |
Sentry | Issue trackers |
Cloudflare | CDN |
Google Tag Manager | Tag managers |
HSTS | Security |
RSS | Miscellaneous |
Web Application Vulnerabilities
Evidence
URL | Evidence |
---|---|
https://www.ycombinator.com/companies/industry/consumer | 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.
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-693 |
OWASP Top 10 - 2017 | A6 - Security Misconfiguration |
OWASP Top 10 - 2021 | A5 - Security Misconfiguration |
Evidence
Software / Version | Category |
---|---|
Amplitude | Analytics |
Google Analytics UA | Analytics |
Inertia.js | JavaScript frameworks |
lit-element 4.1.1 | JavaScript libraries |
lit-html 3.2.1 | JavaScript libraries |
Google Maps | Maps |
Open Graph | Miscellaneous |
Ruby | Programming languages |
Ruby on Rails | Web frameworks |
Sentry | Issue trackers |
Cloudflare | CDN |
Google Tag Manager | Tag managers |
HSTS | Security |
RSS | Miscellaneous |
Vulnerability description
We noticed that server software and technology details are exposed, potentially aiding attackers in tailoring specific exploits against identified systems and versions.
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
OWASP Top 10 - 2017 | A6 - Security Misconfiguration |
OWASP Top 10 - 2021 | A5 - Security Misconfiguration |
Evidence
Vulnerability description
We found the robots.txt on the target server. This file instructs web crawlers what URLs and endpoints of the web application they can visit and crawl. Website administrators often misuse this file while attempting to hide some web pages from the users.
Recommendation
We recommend you to manually review the entries from robots.txt and remove the ones which lead to sensitive locations in the website (ex. administration panels, configuration files, etc).
Classification
OWASP Top 10 - 2017 | A6 - Security Misconfiguration |
OWASP Top 10 - 2021 | A5 - Security Misconfiguration |
Vulnerability description
Website is accessible.
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.
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
OWASP Top 10 - 2017 | A6 - Security Misconfiguration |
OWASP Top 10 - 2021 | A5 - Security Misconfiguration |
Infrastructure Vulnerabilities
Evidence
Domain Queried | DNS Record Type | Description | Value |
---|---|---|---|
www.ycombinator.com | A | IPv4 address | 104.22.6.236 |
www.ycombinator.com | A | IPv4 address | 104.22.7.236 |
www.ycombinator.com | A | IPv4 address | 172.67.5.232 |
www.ycombinator.com | CNAME | Canonical name | www.ycombinator.com.cdn.cloudflare.net |
Recommendation
We recommend reviewing all DNS records associated with the domain and identifying and removing unused or obsolete records.
Vulnerability description
OS detection couldn't determine the operating system.
Recommendation
Vulnerability checks are skipped for ports that redirect to another port. We recommend scanning the redirected port directly.
Evidence
Software / Version | Category |
---|---|
Cloudflare | CDN |
Vulnerability description
We noticed that server software and technology details are exposed, potentially aiding attackers in tailoring specific exploits against identified systems and versions.
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.