➤ Use the Select your language drop-down menu in theupper-right to set the language of the following examples.

1. SQL Injection Prevention Cheat Sheet; JPA Symptom. Injection of this type occur when the application use untrusted user input to build a JPA query using a String and execute it. It's quite similar to SQL injection but here the altered language is not SQL but JPA QL. Use Java Persistence Query Language Query Parameterization in.
2. MongoDB injections NoSQL database MongoDB Different syntax, but similar vulnerability Find ways to insert an always true condition Similar injection. Inject an always true condition. Inject a correct termination of the NoSQL query.
3. Injection Prevention Cheat Sheet in Java¶ Introduction¶ This document has for objective to provide some tips to handle Injection into Java application code. Sample codes used in tips are located here. What is Injection¶ Injection in OWASP Top 10 is defined as following.

This page provides examples of query operations using thedb.collection.find() method in themongo shell. The examples on this page use theinventory collection. To populate the inventorycollection, run the following:

You can run the operation in the web shell below:

Select All Documents in a Collection¶

To select all documents in the collection, pass an emptydocument as the query filter parameter to the find method. Thequery filter parameter determines the select criteria:

This operation corresponds to the following SQL statement:

Mongodb Nosql Injection Cheat Sheet Excel

For more information on the syntax of the method, seefind().

With MongoDB we are not building queries from strings, so traditional SQL injection attacks are not a problem.

Specify Equality Condition¶

To specify equality conditions, use <field>:<value>expressions in thequery filter document:

The following example selects from the inventory collection alldocuments where the status equals 'D':

This operation corresponds to the following SQL statement:

The MongoDB Compass query bar autocompletes the current querybased on the keys in your collection's documents, includingkeys in embedded sub-documents.

Nosql Db

Specify Conditions Using Query Operators¶

A query filter document canuse the query operators to specifyconditions in the following form:

The following example retrieves all documents from the inventorycollection where status equals either 'A' or 'D':

Although you can express this query using the $or operator,use the $in operator rather than the $oroperator when performing equality checks on the same field.

The operation corresponds to the following SQL statement:

Refer to the Query and Projection Operators document for the completelist of MongoDB query operators.

Specify AND Conditions¶

A compound query can specify conditions for more than one field in thecollection's documents. Implicitly, a logical AND conjunctionconnects the clauses of a compound query so that the query selects thedocuments in the collection that match all the conditions.

The following example retrieves all documents in the inventorycollection where the status equals 'A'andqty is lessthan ($lt) 30:

The operation corresponds to the following SQL statement:

See comparison operators for otherMongoDB comparison operators.

Specify OR Conditions¶

Using the $or operator, you can specify a compound querythat joins each clause with a logical OR conjunction so that thequery selects the documents in the collection that match at least onecondition.

The following example retrieves all documents in the collection wherethe status equals 'A'orqty is less than($lt) 30: Opera download for mac.

The operation corresponds to the following SQL statement:

Queries which use comparison operatorsare subject to Type Bracketing.

Specify AND as well as OR Conditions¶

In the following example, the compound query document selects alldocuments in the collection where the status equals 'A'andeitherqty is less than ($lt) 30oritem starts with the character p:

Download skycomputereurope driver. The operation corresponds to the following SQL statement:

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MongoDB supports regular expressions $regex queries toperform string pattern matches.

Additional Query Tutorials¶

For additional query examples, see:

Behavior¶

Cursor¶

The db.collection.find() methodreturns a cursor to the matchingdocuments.

Read Isolation¶

For reads to replica sets and replica setshards, read concern allows clients to choose alevel of isolation for their reads. For more information, seeRead Concern.