Property 'explode' of Encoding Object Ignored
- Query id: a4dd69b8-49fa-45d2-a060-c76655405b05
- Query name: Property 'explode' of Encoding Object Ignored
- Platform: OpenAPI
- Severity: Info
- Category: Best Practices
- CWE: 665
- URL: Github
Description¶
Property 'explode' of the encoding object should be defined when the media type of the request body is 'application/x-www-form-urlencoded'. If not, it will be ignored.
Documentation
Code samples¶
Code samples with security vulnerabilities¶
Positive test num. 1 - json file
{
"openapi": "3.0.0",
"info": {
"title": "Simple API Overview",
"version": "1.0.0"
},
"paths": {
"/": {
"get": {
"operationId": "listVersionsv2",
"summary": "List API versions",
"responses": {
"200": {
"description": "200 response",
"content": {
"application/json": {
"examples": {
"foo": {
"value": {
"versions": [
{
"links": [
{
"href": "http://127.0.0.1:8774/v2/",
"rel": "self"
}
],
"status": "CURRENT",
"updated": "2011-01-21T11:33:21Z",
"id": "v2.0"
}
]
}
}
}
}
}
}
}
}
}
},
"components": {
"requestBodies": {
"NewItem": {
"description": "A JSON object containing item data",
"required": true,
"content": {
"multipart/data": {
"schema": {
"type": "object",
"properties": {
"code": {
"type": "string",
"format": "binary"
}
}
},
"examples": {
"tshirt": {
"$ref": "#/components/examples/tshirt"
}
},
"encoding": {
"code": {
"contentType": "image/png, image/jpeg",
"explode": true
}
}
}
}
}
}
}
}
Positive test num. 2 - json file
{
"openapi": "3.0.0",
"info": {
"title": "Simple API Overview",
"version": "1.0.0"
},
"paths": {
"/": {
"get": {
"operationId": "listVersionsv2",
"summary": "List API versions",
"responses": {
"200": {
"description": "200 response",
"content": {
"application/json": {
"encoding": {
"code": {
"contentType": "image/png, image/jpeg"
}
},
"schema": {
"properties": {
"code": {
"type": "string",
"format": "binary"
},
"message": {
"type": "string"
}
},
"type": "object",
"discriminator": {
"propertyName": "petType"
}
}
}
}
}
},
"requestBody": {
"content": {
"multipart/form-data": {
"schema": {
"type": "string",
"format": "binary",
"properties": {
"code": {
"type": "string",
"format": "binary"
}
}
},
"encoding": {
"code": {
"contentType": "image/png, image/jpeg",
"explode": true
}
}
}
}
}
}
}
}
}
Positive test num. 3 - yaml file
openapi: 3.0.0
info:
title: Simple API Overview
version: 1.0.0
paths:
"/":
get:
operationId: listVersionsv2
summary: List API versions
responses:
"200":
description: 200 response
content:
application/json:
examples:
foo:
value:
versions:
- status: CURRENT
updated: "2011-01-21T11:33:21Z"
id: v2.0
links:
- href: http://127.0.0.1:8774/v2/
rel: self
components:
requestBodies:
NewItem:
description: A JSON object containing item data
required: true
content:
multipart/form-data:
schema:
type: object
properties:
code:
type: string
format: binary
examples:
tshirt:
$ref: "#/components/examples/tshirt"
encoding:
code:
contentType: image/png, image/jpeg
explode: true
Positive test num. 4 - yaml file
openapi: 3.0.0
info:
title: Simple API Overview
version: 1.0.0
paths:
"/":
get:
operationId: listVersionsv2
summary: List API versions
responses:
"200":
description: 200 response
content:
application/json:
schema:
type: object
discriminator:
propertyName: petType
properties:
code:
type: string
format: binary
message:
type: string
encoding:
code:
contentType: image/png, image/jpeg
requestBody:
content:
multipart/form-data:
schema:
type: string
format: binary
properties:
code:
type: string
format: binary
encoding:
code:
contentType: image/png, image/jpeg
explode: true
Code samples without security vulnerabilities¶
Negative test num. 1 - json file
{
"openapi": "3.0.0",
"info": {
"title": "Simple API Overview",
"version": "1.0.0"
},
"paths": {
"/": {
"get": {
"operationId": "listVersionsv2",
"summary": "List API versions",
"responses": {
"200": {
"description": "200 response",
"content": {
"application/json": {
"examples": {
"foo": {
"value": {
"versions": [
{
"links": [
{
"href": "http://127.0.0.1:8774/v2/",
"rel": "self"
}
],
"status": "CURRENT",
"updated": "2011-01-21T11:33:21Z",
"id": "v2.0"
}
]
}
}
}
}
}
}
}
}
}
},
"components": {
"requestBodies": {
"NewItem": {
"description": "A JSON object containing item data",
"required": true,
"content": {
"application/x-www-form-urlencoded": {
"schema": {
"type": "object",
"properties": {
"code": {
"type": "string",
"format": "binary"
}
}
},
"examples": {
"tshirt": {
"$ref": "#/components/examples/tshirt"
}
},
"encoding": {
"code": {
"contentType": "image/png, image/jpeg",
"explode": true
}
}
}
}
}
}
}
}
Negative test num. 2 - json file
{
"openapi": "3.0.0",
"info": {
"title": "Simple API Overview",
"version": "1.0.0"
},
"paths": {
"/": {
"get": {
"operationId": "listVersionsv2",
"summary": "List API versions",
"responses": {
"200": {
"description": "200 response",
"content": {
"application/json": {
"encoding": {
"code": {
"contentType": "image/png, image/jpeg"
}
},
"schema": {
"properties": {
"code": {
"type": "string",
"format": "binary"
},
"message": {
"type": "string"
}
},
"type": "object",
"discriminator": {
"propertyName": "petType"
}
}
}
}
}
},
"requestBody": {
"content": {
"application/x-www-form-urlencoded": {
"schema": {
"type": "string",
"format": "binary",
"properties": {
"code": {
"type": "string",
"format": "binary"
}
}
},
"encoding": {
"code": {
"contentType": "image/png, image/jpeg",
"explode": true
}
}
}
}
}
}
}
}
}
Negative test num. 3 - yaml file
openapi: 3.0.0
info:
title: Simple API Overview
version: 1.0.0
paths:
"/":
get:
operationId: listVersionsv2
summary: List API versions
responses:
"200":
description: 200 response
content:
application/json:
examples:
foo:
value:
versions:
- status: CURRENT
updated: "2011-01-21T11:33:21Z"
id: v2.0
links:
- href: http://127.0.0.1:8774/v2/
rel: self
components:
requestBodies:
NewItem:
description: A JSON object containing item data
required: true
content:
application/x-www-form-urlencoded:
schema:
type: object
properties:
code:
type: string
format: binary
examples:
tshirt:
$ref: "#/components/examples/tshirt"
encoding:
code:
contentType: image/png, image/jpeg
explode: true
Negative test num. 4 - yaml file
openapi: 3.0.0
info:
title: Simple API Overview
version: 1.0.0
paths:
"/":
get:
operationId: listVersionsv2
summary: List API versions
responses:
"200":
description: 200 response
content:
application/json:
schema:
type: object
discriminator:
propertyName: petType
properties:
code:
type: string
format: binary
message:
type: string
encoding:
code:
contentType: image/png, image/jpeg
requestBody:
content:
application/x-www-form-urlencoded:
schema:
type: string
format: binary
properties:
code:
type: string
format: binary
encoding:
code:
contentType: image/png, image/jpeg
explode: true