XPost: linux.debian.devel.qa

Package: qa.debian.org
User: qa.debian.org@packages.debian.org
Usertags: udd

----- Forwarded message from Kishan Shah <shahishan555@gmail.com> -----

From: Kishan Shah <shahishan555@gmail.com>
To: Lucas Nussbaum <lucas@debian.org>, carnil@debian.org
Date: Sun, 4 Aug 2024 08:52:13 +0545
Subject: [BUG REPORT] ~ Reflected XSS in *.debian.org [Ultimate Database] Message-ID: <CABZxdodqJg9KkFU+aKWVEsZnhgnSqJcRdT7tAuefzseaC+SCeA@mail.gmail.com>

Dear Sir,

I trust this email finds you well. As a cybersecurity enthusiast committed
to online safety, I am writing to report a significant security
vulnerability identified on your subdomain, specifically detailed at https://debian.org.

In accordance with the guidelines outlined on [ https://www.debian.org/security/disclosure-policy], I am responsibly
disclosing this matter to your attention.

Recently, I detected a Cross-Site Scripting (XSS) vulnerability, a critical threat in web security. This flaw allows malevolent actors to inject
harmful scripts into web pages, potentially compromising user data, manipulating user actions, and undermining the integrity and
trustworthiness of your website.


Vulnerable Endpoint Identified
The vulnerability was located at:
[ https://udd.debian.org/cgi-bin/bts-usertags.cgi?tag=1%22)%27--%3E%3CSvg%2FOnLoad%3D(confirm)(document.domain)%3C!--&user=wnpp%40packages.debian.org
]

Reproduction Steps
1. Navigate to the provided link: ( https://udd.debian.org/cgi-bin/bts-usertags.cgi?tag=TEST&user=wnpp%40packages.debian.org
).
2. Inject the payload in place of TEST: `1%22)%27--%3E%3CSvg%2FOnLoad%3D(confirm)(document.domain)%3C!--`.
3. Observe an alert window displaying the domain, evidencing the XSS
exploit.

This vulnerability demonstrates a lack of rigorous input validation, making your website susceptible to XSS attacks.

Impacts
The exploitation of this vulnerability poses substantial risks:
- Data Breach and Loss of Confidentiality: Attacker-initiated scripts could lead to unauthorized access and exfiltration of sensitive user data.
- Integrity Compromise: Malicious scripts can manipulate website content, eroding user trust.
- Phishing and Scams: Crafted links or emails could deceive users into executing harmful JavaScript, leading to potential scams.
- Malware Distribution: This flaw could serve as a conduit for malware dissemination.

Recommended ~ Preventive Measures
To mitigate this risk and enhance your web security posture, I strongly recommend the following actions:
1. Implement stringent Input Validation and Sanitization protocols.
2. Employ robust Output Encoding strategies.
3. Enforce a comprehensive Content Security Policy (CSP).
4. Conduct regular and thorough Security Audits.

It is crucial to address this vulnerability with urgency to preserve the security and reputation of your website. Neglecting this issue could result
in severe implications for both your users and your organization.

I am at your disposal for any further information or assistance required in this matter. Prompt action is imperative, and I await your swift response.

Thank you for your attention to this critical issue.

Warm regards,
Kishan Shah

----- End forwarded message -----

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)