$ sudo docker pull blabla1337/owasp-skf-lab:graphql-mutation​```text$ sudo docker run -ti -p 127.0.0.1:5000:5000 blabla1337/owasp-skf-lab:graphql-mutation
Now that the app is running let's go hacking!
First, make sure python3 and pip are installed on your host machine. After installation, we go to the folder of the lab we want to practise "i.e /skf-labs/XSS/, /skf-labs/jwt-secret/ " and run the following commands:
$ pip3 install -r requirements.txt
$ python3 <labname>
Now that the app is running let's go hacking!
The application implements a very basic mutation to create a new post on the blog. The mutation used is the following
mutation {createPost(input: {body: "' -- ", title: "test_title", authorId: 2}) {post {bodyauthorIdtitle}}}
If we look at the code we have a class CreatePost
that will implement our logic to create a post.
class CreatePost(graphene.Mutation):"""Mutation to create a post."""post = graphene.Field(lambda: PostObject, description="Post created by this mutation.")​class Arguments:​input = CreatePostInput(required=True)​def mutate(self, info, input):​post = Post(**input)db.session.add(post)db.session.commit()​return CreatePost(post=post)
The method mutate will just get the new Post object and insert an instance in the database.
What can you exploit? ;)