Weakness (CWE)
CWE-89: Improper Neutralization of Special Elements used in an SQL Command
The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.
How to prevent it (8 mitigations)
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Architecture and Design
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482].
For example, consider using persistence layers such as Hibernate or Enterprise Java Beans, which can provide significant protection against SQL injection if used properly.
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Architecture and Design
If available, use structured mechanisms that automatically enforce the separation between data and code. These mechanisms may be able to provide the relevant quoting, encoding, and validation automatically, instead of relying on the developer to provide this capability at every point where output is generated.
Process SQL queries using prepared statements, parameterized queries, or stored procedures. These features should accept parameters or variables and support strong typing. Do not dynamically construct and execute query strings within these features using "exec" or similar functionality, since this may re-introduce the possibility of SQL injection. [REF-867]
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Architecture and Design, Operation
Run your code using the lowest privileges that are required to accomplish the necessary tasks [REF-76]. If possible, create isolated accounts with limited privileges that are only used for a single task. That way, a successful attack will not immediately give the attacker access to the rest of the software or its environment. For example, database applications rarely need to run as the database administrator, especially in day-to-day operations.
Specifically, follow the principle of least privilege when creating user accounts to a SQL database. The database users should only have the minimum privileges necessary to use their account. If the requirements of the system indicate that a user can read and modify their own data, then limit their privileges so they cannot read/write others' data. Use the strictest permissions possible on all database objects, such as execute-only for stored procedures.
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Architecture and Design
For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
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Implementation
While it is risky to use dynamically-generated query strings, code, or commands that mix control and data together, sometimes it may be unavoidable. Properly quote arguments and escape any special characters within those arguments. The most conservative approach is to escape or filter all characters that do not pass an extremely strict allowlist (such as everything that is not alphanumeric or white space). If some special characters are still needed, such as white space, wrap each argument in quotes after the escaping/filtering step. Be careful of argument injection (CWE-88).
Instead of building a new implementation, such features may be available in the database or programming language. For example, the Oracle DBMS_ASSERT package can check or enforce that parameters have certain properties that make them less vulnerable to SQL injection. For MySQL, the mysql_real_escape_string() API function is available in both C and PHP.
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Implementation
Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
When constructing SQL query strings, use stringent allowlists that limit the character set based on the expected value of the parameter in the request. This will indirectly limit the scope of an attack, but this technique is less important than proper output encoding and escaping.
Note that proper output encoding, escaping, and quoting is the most effective solution for preventing SQL injection, although input validation may provide some defense-in-depth. This is because it effectively limits what will appear in output. Input validation will not always prevent SQL injection, especially if you are required to support free-form text fields that could contain arbitrary characters. For example, the name "O'Reilly" would likely pass the validation step, since it is a common last name in the English language. However, it cannot be directly inserted into the database because it contains the "'" apostrophe character, which would need to be escaped or otherwise handled. In this case, stripping the apostrophe might reduce the risk of SQL injection, but it would produce incorrect behavior because the wrong name would be recorded.
When feasible, it may be safest to disallow meta-characters entirely, instead of escaping them. This will provide some defense in depth. After the data is entered into the database, later processes may neglect to escape meta-characters before use, and you may not have control over those processes.
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Architecture and Design
When the set of acceptable objects, such as filenames or URLs, is limited or known, create a mapping from a set of fixed input values (such as numeric IDs) to the actual filenames or URLs, and reject all other inputs.
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Implementation
Ensure that error messages only contain minimal details that are useful to the intended audience and no one else. The messages need to strike the balance between being too cryptic (which can confuse users) or being too detailed (which may reveal more than intended). The messages should not reveal the methods that were used to determine the error. Attackers can use detailed information to refine or optimize their original attack, thereby increasing their chances of success.
If errors must be captured in some detail, record them in log messages, but consider what could occur if the log messages can be viewed by attackers. Highly sensitive information such as passwords should never be saved to log files.
Avoid inconsistent messaging that might accidentally tip off an attacker about internal state, such as whether a user account exists or not.
In the context of SQL Injection, error messages revealing the structure of a SQL query can help attackers tailor successful attack strings.
Source: MITRE CWE-89
6,424 results · Clear filters · Feed
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High 8.1
Kysely has a MySQL SQL Injection via Insufficient Backslash Escaping in `sql.lit(string)` usage or similar methods that append string literal values into the compiled SQL strings
Kysely is a type-safe TypeScript SQL query builder. Prior to version 0.28.14, Kysely's `DefaultQueryCompiler.sanitizeStringLiteral()` only escapes single quotes by doubling them (`'` → `''`) but does not escape backslashes. When used with the MySQL dialect (w…
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High 8.1
Kysely has a MySQL SQL Injection via Backslash Escape Bypass in non-type-safe usage of JSON path keys.
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High 7.5
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High 8.2
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High 8.2
qdPM 9.1 SQL Injection via filter_by Parameters
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High 8.2
KomSeo Cart 1.3 SQL Injection via edit.php
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High 7.1
Online Quiz Maker 1.0 SQL Injection via catid Parameter
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High 8.2
ASP.NET jVideo Kit 1.0 SQL Injection via query Parameter
ASP.NET jVideo Kit 1.0 contains an SQL injection vulnerability that allows unauthenticated attackers to inject SQL commands through the 'query' parameter in the search functionality. Attackers can submit malicious SQL payloads via GET or POST requests to the …
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High 8.2
Library CMS 1.0 SQL Injection via admin login
Library CMS 1.0 contains an SQL injection vulnerability that allows unauthenticated attackers to bypass authentication by injecting SQL code through the username parameter. Attackers can send POST requests to the admin login endpoint with boolean-based blind …
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High 8.2
Online Store System CMS 1.0 SQL Injection via clientaccess
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High 8.2
SAT CFDI 3.3 SQL Injection via signIn endpoint
SAT CFDI 3.3 contains an SQL injection vulnerability that allows attackers to manipulate database queries by injecting SQL code through the 'id' parameter in the signIn endpoint. Attackers can submit POST requests with boolean-based blind, stacked queries, or…
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High 7.1
School Management System CMS 1.0 Admin Login SQL Injection
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High 8.2
Wecodex Restaurant CMS 1.0 SQL Injection via Login
Wecodex Restaurant CMS 1.0 contains an SQL injection vulnerability that allows unauthenticated attackers to manipulate database queries by injecting SQL code through the username parameter. Attackers can send POST requests to the login endpoint with malicious…
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High 8.2
Wecodex Hotel CMS 1.0 SQL Injection via Admin Login
Wecodex Hotel CMS 1.0 contains an SQL injection vulnerability in the admin login functionality that allows unauthenticated attackers to bypass authentication by injecting SQL code. Attackers can submit malicious SQL payloads through the username parameter in …
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High 8.2
Shipping System CMS 1.0 SQL Injection via admin login
Shipping System CMS 1.0 contains an SQL injection vulnerability that allows unauthenticated attackers to bypass authentication by injecting SQL code through the username parameter. Attackers can submit malicious SQL payloads using boolean-based blind techniqu…
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High 7.3
code-projects Simple Laundry System Parameter checkregisitem.php sql injection
A security flaw has been discovered in code-projects Simple Laundry System 1.0. Affected is an unknown function of the file /checkregisitem.php of the component Parameter Handler. The manipulation of the argument Long-arm-shirtVol results in sql injection. Th…
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High 7.3
code-projects Online Food Ordering System Admin Login admin.php sql injection
A vulnerability was detected in code-projects Online Food Ordering System 1.0. This issue affects some unknown processing of the file /admin.php of the component Admin Login Module. The manipulation of the argument Username results in sql injection. The attac…
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High 7.3
itsourcecode Online Enrollment System Parameter index.php sql injection
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High 7.3
code-projects Online Food Ordering System Shopping Cart cart.php sql injection
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High 7.3
SourceCodester Food Ordering System Parameter purchase.php sql injection
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High 7.3
SourceCodester Malawi Online Market display.php sql injection
A flaw has been found in SourceCodester Malawi Online Market 1.0. The impacted element is an unknown function of the file /display.php. Executing a manipulation of the argument ID can lead to sql injection. It is possible to launch the attack remotely. The ex…
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High 7.7
Daylight Studio FuelCMS v1.5.2 was discovered to contain a SQL injection vulnerability via the /controllers/Login.php c…
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High 8.8CVE-2026-33917 Public exploit
OpenEMR has SQL Injection in CAMOS Form
OpenEMR is a free and open source electronic health records and medical practice management application. Versions prior to 8.0.0.3 contais a SQL injection vulnerability in the ajax_save CAMOS form that can be exploited by authenticated attackers. The vulnerab…
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High 7.2
OpenEMR has SQL Injection in PostCalendar Category Delete
OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0.3, the PostCalendar module contains a blind SQL injection vulnerability in the `categoriesUpdate` administrative function. The `del…
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High 7.2CVE-2026-33910 Public exploit
OpenEMR has a SQL Injection Vulnerability in patient selection
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High 8.1CVE-2026-29187 Public exploit
OpenEMR Vulnerable to Authenticated Blind Boolean-Based SQL Injection in new_search_popup.php
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High 8.7
n8n Vulnerable to SQL Injection in Data Table Node via orderByColumn Expression
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High 8.5
WordPress JS Help Desk plugin <= 3.0.3 - SQL Injection vulnerability
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High 8.5
WordPress Miraculous Core Plugin plugin < 2.1.2 - SQL Injection vulnerability
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in kamleshyadav Miraculous Core Plugin miraculouscore allows Blind SQL Injection.This issue affects Miraculous Core Plugin: from n/a through < 2.1.2.
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High 8.5
WordPress WZone plugin <= 14.0.31 - SQL Injection vulnerability
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in AA-Team WZone woozone allows Blind SQL Injection.This issue affects WZone: from n/a through <= 14.0.31.
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High 8.5
WordPress ElementInvader Addons for Elementor plugin <= 1.4.2 - SQL Injection vulnerability
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Element Invader ElementInvader Addons for Elementor elementinvader-addons-for-elementor allows Blind SQL Injection.This issue affects ElementInvader Addons f…
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High 8.5
WordPress Organici Library plugin <= 2.1.2 - SQL Injection vulnerability
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in NooTheme Organici Library noo-organici-library allows Blind SQL Injection.This issue affects Organici Library: from n/a through <= 2.1.2.
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High 8.2
OpenCart Core 4.0.2.3 SQL Injection via search Parameter
OpenCart Core 4.0.2.3 contains a SQL injection vulnerability that allows unauthenticated attackers to manipulate database queries by injecting SQL code through the 'search' parameter. Attackers can send GET requests to the product search endpoint with malicio…
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High 8.7
SQL Injection vulnerability in Support Board
A SQL Injection vulnerability has been found in Support Board v3.7.7. This vulnerability allows an attacker to retrieve, create, update and delete database via 'calls[0][message_ids][]' parameter in '/supportboard/include/ajax.php' endpoint.
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High 7.3
code-projects Simple Laundry System Parameter checkcheckout.php sql injection
A vulnerability was found in code-projects Simple Laundry System 1.0. This affects an unknown function of the file /checkcheckout.php of the component Parameter Handler. The manipulation of the argument serviceId results in sql injection. It is possible to la…
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High 8.7CVE-2026-23921 Public exploit
Blind, read-only SQL injection in Zabbix API via sortfield parameter
A low privilege Zabbix user with API access can exploit a blind SQL injection vulnerability in include/classes/api/CApiService.php to execute arbitrary SQL selects via the sortfield parameter. Although query results are not returned directly, an attacker can …
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High 8.6
Parse Server: SQL injection via aggregate and distinct field names in PostgreSQL adapter
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.59 and 9.6.0-alpha.53, an attacker with master key access can execute arbitrary SQL statements on the PostgreSQL database by injectin…
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High 8.2
eNdonesia Portal v8.7 SQL Injection via banners.php
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High 8.2
Bootstrapy CMS Lastest Multiple SQL Injection via Forum and Contact Modules
Bootstrapy CMS contains multiple SQL injection vulnerabilities that allow unauthenticated attackers to execute arbitrary SQL queries by injecting malicious code through POST parameters. Attackers can inject SQL payloads into the thread_id parameter of forum-t…
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High 8.2
Inout Article Base CMS Lastest SQL Injection via portalLogin.php
Inout Article Base CMS contains SQL injection vulnerabilities that allow unauthenticated attackers to manipulate database queries through the 'p' and 'u' parameters. Attackers can inject SQL code using XOR-based payloads in GET requests to portalLogin.php to …