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@hugbubby hugbubby commented Dec 6, 2025

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include_once(PHPWG_ROOT_PATH.'include/common.inc.php');
include_once(PHPWG_ROOT_PATH.'include/functions_comment.inc.php');

echo $_GET['asdf'];

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Reflected XSS Vulnerability in comments.php via 'asdf' Parameter (Severity: MEDIUM)

This reflected XSS vulnerability allows an attacker to execute arbitrary JavaScript code in a user's browser, potentially leading to session hijacking or defacement. The vulnerability exists in comments.php at line 16, where the value of the 'asdf' parameter from the $_GET array is directly echoed into the HTML output without proper sanitization, which causes any injected script code to be executed.
View details in ZeroPath

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

@zeropath-ai-staging
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Possible security or compliance issues detected. Reviewed everything up to fd00138.

The following issues were found:

Security Overview
Detected Code Changes
Change Type Relevant files
Other ► comments.php
    Added echo $_GET['asdf'];

@zeropath-ai-dev
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Possible security or compliance issues detected. Reviewed everything up to fd00138.

The following issues were found:

Security Overview
Detected Code Changes
Change Type Relevant files
Other ► comments.php
    Added echo $_GET['asdf'];

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.

include_once(PHPWG_ROOT_PATH.'include/common.inc.php');
include_once(PHPWG_ROOT_PATH.'include/functions_comment.inc.php');

echo $_GET['asdf'];

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Reflected XSS vulnerability in comments.php via 'asdf' parameter (Severity: MEDIUM)

This reflected cross-site scripting (XSS) vulnerability allows an attacker to execute arbitrary JavaScript code in a victim's browser, potentially leading to account compromise or data theft. The comments.php script directly echoes the asdf GET parameter on line 16 without any sanitization or escaping, which causes any provided JavaScript code to be executed when a user visits the crafted URL.
View details

Suggested change
echo $_GET['asdf'];
echo isset(\$_GET['asdf']) ? htmlspecialchars(\$_GET['asdf'], ENT_QUOTES, 'UTF-8') : '';

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2 participants