Skip to content
OpenAdvisories

Weakness (CWE)

CWE-89: Improper Neutralization of Special Elements used in an SQL Command

Base

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)
  1. 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.

  2. 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]

  3. 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.

  4. 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.

  5. 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.

  6. 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.

  7. 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.

  8. 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

  • High 8.2

    The Open ISES Project 3.30A SQL Injection via main.php

    The Open ISES Project 3.30A contains an SQL injection vulnerability that allows unauthenticated attackers to execute arbitrary SQL queries by injecting malicious code through the frm_passwd parameter. Attackers can send POST requests to main.php with crafted …

  • High 8.2

    Kados R10 GreenBee SQL Injection via update_feature.php

    Kados R10 GreenBee contains an SQL injection vulnerability that allows unauthenticated attackers to execute arbitrary SQL queries by injecting malicious code through the feature_id parameter of boards_buttons/update_feature.php. The feature_id value is concat…

  • High 8.2

    Kados R10 GreenBee SQL Injection via update_release.php

    Kados R10 GreenBee contains an SQL injection vulnerability that allows unauthenticated attackers to execute arbitrary SQL queries by injecting malicious code through the release_id parameter of boards_buttons/update_release.php. The release_id value is concat…

  • High 7.1

    MaxOn ERP Software 8.x-9.x SQL Injection via nomor Parameter

    MaxOn ERP Software 8.x-9.x contains an SQL injection vulnerability that allows authenticated users to execute arbitrary SQL queries through the nomor, user, and jenis parameters in the log_activity function. Attackers can send POST requests to /index.php/user…

  • High 8.2

    HaPe PKH 1.1 SQL Injection via nama_kelompok Parameter

    HaPe PKH 1.1 contains an SQL injection vulnerability that allows unauthenticated attackers to manipulate database queries by injecting SQL code through the 'nama_kelompok' POST parameter sent to lap-anggota-kelompok-pdf.php. Attackers can send a crafted reque…

  • High 8.2

    HaPe PKH 1.1 SQL Injection via desa Parameter

    HaPe PKH 1.1 contains an SQL injection vulnerability that allows unauthenticated attackers to manipulate database queries by injecting SQL code through the 'desa' POST parameter sent to lap-peserta-perdesa-pdf.php. Attackers can send a crafted request with a …

  • High 8.2

    HaPe PKH 1.1 SQL Injection via id Parameter in admin/media.php

    HaPe PKH 1.1 contains multiple SQL injection vulnerabilities in admin/media.php that allow attackers to manipulate database queries by injecting SQL code through the 'id' parameter. An unauthenticated attacker can exploit the desa module (module=desa&act=hapu…

  • High 8.2

    E-Registrasi Pencak Silat 18.10 SQL Injection via id_partai

    E-Registrasi Pencak Silat 18.10 contains an SQL injection vulnerability that allows unauthenticated attackers to execute arbitrary SQL queries by injecting malicious code through the id_partai parameter. Attackers can send GET requests to monitor_nilai.php wi…

  • High 8.2

    Zechat 1.5 SQL Injection via uname Parameter

    Zechat 1.5 contains an SQL injection vulnerability that allows unauthenticated attackers to extract database information by injecting SQL code through the uname parameter. Attackers can send crafted requests to profile.php with UNION-based SQL injection paylo…

  • High 8.5

    FreePBX: Authenticated SQL Injection via ORDER BY in CDR Reports

    FreePBX is an open source IP PBX. Prior to 16.0.50 and 17.0.11, the CDR Reports module page allows SQL injection through the order and sort POST parameters. Authentication with a FreePBX Administration Control Panel account that has CDR section access is requ…

  • High 7.1

    Mautic has SQL Injection in API Contact Filtering

    An SQL injection vulnerability exists in Mautic's API contact filtering mechanism. Due to insufficient recursive sanitization of nested query parameters, an authenticated API user can bypass input filtering and inject arbitrary SQL commands.

  • High 7.5

    Appointment Booking Calendar <= 1.6.11.8 - Unauthenticated SQL Injection via 'append_where_sql' Parameter

    The Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnerable to time-based blind SQL Injection via the 'append_where_sql' parameter in all versions up to, and including, 1.6.11.8 due to insufficient escapin…

  • High 8.7

    Pi.Alert: Web Interface Vulnerable to Unauthenticated Blind SQL Injection

    Pi.Alert is a WIFI / LAN intruder detector with web service monitoring. From 2024-06-29 to before 2026-05-07, the web application endpoint is vulnerable to SQL injection. The /pialert/php/server/devices.php route accepts requests from unauthenticated users wh…

  • High 7.5

    Kysely: JSON-path traversal injection via unsanitized path-leg metacharacters in `JSONPathBuilder.key()` / `.at()`

    Kysely is a type-safe TypeScript SQL query builder. From 0.26.0 to 0.28.16, DefaultQueryCompiler.visitJSONPathLeg does not escape JSON-path metacharacters (., [, ], *, **, ?). When attacker-controlled input flows into eb.ref(col, '->$').key(input) or .at(inpu…

  • High 8.8

    elFinder: SQL Injection MySQL Volume Driver (elFinderVolumeMySQL)

    elFinder is an open-source file manager for web, written in JavaScript using jQuery UI. Prior to 2.1.68, an authenticated SQL injection vulnerability in the elFinder MySQL volume driver (elFinderVolumeMySQL) allows any logged-in user, including users with rea…

  • High 8.5

    WordPress Duplicate Page and Post plugin <= 2.9.5 - SQL Injection vulnerability

    Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Arjun Thakur Duplicate Page and Post allows Blind SQL Injection. This issue affects Duplicate Page and Post: from n/a through 2.9.5.

  • High 8.5

    WordPress MasterStudy LMS plugin <= 3.7.29 - SQL Injection vulnerability

    Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Stylemix MasterStudy LMS masterstudy-lms-learning-management-system allows Blind SQL Injection.This issue affects MasterStudy LMS: from n/a through <= 3.7.29.

  • High 8.6

    A vulnerability in Active Backup for Business allows unauthorized remote attackers to read arbitrary files.

  • High 7.5

    Unauthenticated SQLi in getAccountData function

    An unauthenticated remote attacker can exploit an unauthenticated SQL Injection vulnerability in the getAccountData function due to improper neutralization of special elements in a SQL SELECT command. This can result in a total loss of confidentiality.

  • High 7.1

    Authenticated SQLi in inmessage model

    An low privileged remote attacker can exploit an unauthenticated SQL Injection vulnerability in the inmessage model due to improper neutralization of special elements in a SQL DELETE command allowing for reading the whole database and deleting entries in a no…

  • High 7.1

    Authenticated SQLi in saveDashboardLayout function

    An low privileged remote attacker can exploit an unauthenticated SQL Injection vulnerability in the dash_layout.php files saveDashboardLayout function due to improper neutralization of special elements in a SQL INSERT command allowing for reading the whole da…

  • High 7.1

    Authenticated SQLi in saveDashboardLayout function

    An low privileged remote attacker can exploit an unauthenticated SQL Injection vulnerability in the dash.php files saveDashboardLayout function due to improper neutralization of special elements in a SQL INSERT command allowing for reading the whole database …

  • High 7.5

    Unauthenticated SQLi in sync_data24 task

    An unauthenticated remote attacker can exploit an unauthenticated SQL Injection vulnerability in the sync_data24 task due to improper neutralization of special elements in a SQL SELECT command. This can result in a total loss of confidentiality.

  • High 7.5

    Unauthenticated SQLi in _mb24confi_getDevice function function

    An unauthenticated remote attacker can exploit an unauthenticated SQL Injection vulnerability in the _mb24confi_getDevice function due to improper neutralization of special elements in a SQL SELECT command. This can result in a total loss of confidentiality.

  • High 7.5

    Unauthenticated SQLi in getAlarmProfiles function

    An unauthenticated remote attacker can exploit an unauthenticated SQL Injection vulnerability in the getAlarmProfiles function due to improper neutralization of special elements in a SQL SELECT command. This can result in a total loss of confidentiality.

  • High 7.5

    Unauthenticated SQLi in _mb24confi_getTagAlarm function

    An unauthenticated remote attacker can exploit an unauthenticated SQL Injection vulnerability in the mb24alarm.php files _mb24confi_getTagAlarm function due to improper neutralization of special elements in a SQL SELECT command. This can result in a total los…

  • High 7.5

    Unauthenticated SQLi in _mb24api_getUserAccount function

    An unauthenticated remote attacker can exploit an unauthenticated SQL Injection vulnerability in the _mb24api_getUserAccount function due to improper neutralization of special elements in a SQL SELECT command. This can result in a total loss of confidentialit…

  • High 7.5

    Unauthenticated SQLi in _mb24confi_getTagAlarm function

    An unauthenticated remote attacker can exploit an unauthenticated SQL Injection vulnerability in the dataapi.php files _mb24confi_getTagAlarm function due to improper neutralization of special elements in a SQL SELECT command. This can result in a total loss …

  • High 7.5

    Unauthenticated SQLi in getLiveValues

    An unauthenticated remote attacker can exploit an unauthenticated SQL Injection vulnerability in the getLiveValues functions tagid parameter due to improper neutralization of special elements in a SQL SELECT command. This can result in a total loss of confide…

  • High 7.5

    Unauthenticated SQLi in getLiveValues function

    An unauthenticated remote attacker can exploit an unauthenticated SQL Injection vulnerability in the getLiveValues functions sn parameter due to improper neutralization of special elements in a SQL SELECT command. This can result in a total loss of confidenti…

  • High 7.5

    Unauthenticated SQLi in ssoabstractservice

    An unauthenticated remote attacker can exploit an unauthenticated SQL Injection vulnerability in the ssoabstractservice due to improper neutralization of special elements in a SQL SELECT command. This can result in a total loss of confidentiality.

  • High 7.5

    Unauthenticated SQLi in userinfo Endpoint

    An unauthenticated remote attacker can exploit an unauthenticated SQL Injection vulnerability in the userinfo endpoint due to improper neutralization of special elements in a SQL SELECT command. This can result in a total loss of confidentiality.

  • High 7.3

    itsourcecode Courier Management System manage_user.php sql injection

    A vulnerability has been found in itsourcecode Courier Management System 1.0. Impacted is an unknown function of the file /manage_user.php. Such manipulation of the argument ID leads to sql injection. The attack may be performed from remote. The exploit has b…

  • High 7.3

    code-projects Project Management System Login chk.php sql injection

    A security vulnerability has been detected in code-projects Project Management System 1.0. Affected is an unknown function of the file chk.php of the component Login. The manipulation leads to sql injection. It is possible to initiate the attack remotely. The…

  • High 7.3

    itsourcecode Student Transcript Processing System index.php sql injection

    A vulnerability has been found in itsourcecode Student Transcript Processing System 1.0. This issue affects some unknown processing of the file /admin/modules/class/index.php?view=view. The manipulation of the argument ID leads to sql injection. The attack ma…

  • High 7.3

    itsourcecode Student Transcript Processing System trans.php sql injection

    A flaw has been found in itsourcecode Student Transcript Processing System 1.0. This vulnerability affects unknown code of the file /admin/modules/student/trans.php. Executing a manipulation of the argument studentId/cid can lead to sql injection. The attack …

  • High 7.3

    itsourcecode Student Transcript Processing System index.php sql injection

    A vulnerability was detected in itsourcecode Student Transcript Processing System 1.0. This affects an unknown part of the file /admin/modules/student/index.php?view=view. Performing a manipulation of the argument studentId results in sql injection. The attac…

  • High 8.5
    CVE-2026-44706 Public exploit

    Chatwoot: SQL Injection in Conversation/Contact Filter API via Custom Attribute Values

    Chatwoot is a customer engagement suite. From 2.2.0 to before 4.11.2, a SQL injection vulnerability exists in the conversation and contact filter APIs. When filtering by a custom attribute of type date or number using the is_greater_than or is_less_than opera…

  • High 7.6
    CVE-2026-44680 Public exploit

    MikroORM: SQL injection via runtime-controlled identifiers and JSON-path keys

    MikroORM is a TypeScript ORM for Node.js based on Data Mapper, Unit of Work and Identity Map patterns. Prior to @mikro-orm/knex 6.6.14 and @mikro-orm/sql 7.0.14, MikroORM's identifier-quoting helper (Platform.quoteIdentifier and the postgres/mssql overrides) …

  • High 7.2

    OpenKM 6.3.12 Unrestricted SQL Execution via DatabaseQuery

    OpenKM 6.3.12 contains an unrestricted SQL execution vulnerability that allows authenticated administrative users to execute arbitrary SQL statements against the application database via the DatabaseQuery interface. Attackers can submit malicious SQL queries …