Update register.php

[hugbubby]

No description provided.

[zeropath-ai-staging]

✅ No security or compliance issues detected. Reviewed everything up to 7d05b51.

Security Overview

• 🔎 Scanned files: 1 changed file(s)
• 🔗 Scan Link: https://staging.branch.zeropath.com/app/repositories/c5d8a022-9631-45a3-937f-404f77ff821a?scanId=8c4b4d05-b8ea-4440-8c9c-fe3dfc96b7d0&codeScanTypes=PrScan&tab=issues

Detected Code Changes

Change Type	Relevant files
Other	► register.php     Added output of a GET parameter

Reply to this PR with @zeropath-ai followed by a description of what change you want and we'll auto-submit a change to this PR to implement it.

[zeropath-ai-dev]

Reflected XSS Vulnerability in register.php (Severity: MEDIUM)

This reflected XSS vulnerability allows an attacker to execute arbitrary JavaScript code in a user's browser, potentially leading to account compromise or data theft. The register.php script directly echoes the value of the asdf GET parameter on lines 13-14 without any sanitization, which causes any injected script code to be executed when the page is loaded. An attacker could craft a malicious link and trick a user into clicking it, resulting in the execution of the attacker's script in the user's browser within the context of the vulnerable web application.
_{View details}

Suggested change

	echo $_GET['asdf'];
	echo htmlspecialchars((isset($_GET['asdf']) ? $_GET['asdf'] : ''), ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8');

[zeropath-ai-dev]

✅ No security or compliance issues detected. Reviewed everything up to 7d05b51.

Security Overview

• 🔎 Scanned files: 1 changed file(s)
• 🔗 Scan Link: https://dev.branch.zeropath.com/app/repositories/d9cf8881-7d91-495e-919b-1821f32afbca?scanId=4c3b55b8-7fa1-4329-9883-7e970bc0aea9&codeScanTypes=PrScan&tab=issues

Detected Code Changes

Change Type	Relevant files
Other	► register.php     Added echoing of a GET parameter

Reply to this PR with @zeropath-ai followed by a description of what change you want and we'll auto-submit a change to this PR to implement it.