建站云服务器xss攻击的修复方案：

1.对输入的数据进行HTML转义，使其不会识别为可执行脚本，例如：

String result = HtmlUtils.htmlEscape(source);

2.根据白名单的标签和属性对数据进行过滤，对可执行的脚本进行清除，例如：

<!– https://mvnrepository.com/artifact/org.jsoup/jsoup –>

<dependency>

<groupId>org.jsoup</groupId>

<artifactId>jsoup</artifactId>

<version>1.13.1</version>

</dependency>

String result = Jsoup.clean(source, Whitelist.basic());

//默认的基础白名单配置

public static Whitelistbasic(){

return new Whitelist()

.addTags(

“a”,”b”,”blockquote”,”br”,”cite”,”code”,”dd”,”dL”,”dt”,”em”,

“i”,”Li”,”oL”,”p”,”pre”,”q”,”small”,”span”,”strike”,”strong”,”sub”

“sup”,”U”,”uL”)

.addAttributes(tag:”a”, …attributes:”href”)

.addAttributes(tag:”bLockquote”, …attributes:”cite”)

.addAttributes(tag:”q”, …attritoutes:”cite”)

.addProtocols(tag:”a”, attribute:”href”, …potocols:”ftp”, “http”, “https”, “mailto”)

.addProtocols(tag:”bLockquote”, attribute:”cite”, …protocolo:”http”, “https”)

.addProtocols(tag:”cite”,attribute:”cite”, …protocols:”http”, “https”)

.addEnforcedAttribute(tag:”a”,attribute:”rel”,value:”nofollow”)

;

}