CodeIgniter is a PHP full-stack web framework A vulnerability was found in the Language class that allowed DoS attacks. This vulnerability can be exploited by an attacker to consume a large amount of memory on the server. Upgrade to v4.4.7 or later.

CodeIgniter Shield is an authentication and authorization provider for CodeIgniter 4. In affected versions successful login attempts are recorded with the raw tokens stored in the log table. If a malicious person somehow views the data in the log table they can obtain a raw token which can then be used to send a request with that user's authority. This issue has been addressed in version 1.0.0-beta.8. Users are advised to upgrade. Users unable to upgrade should disable logging for successful login attempts by the configuration files.

CodeIgniter Shield is an authentication and authorization provider for CodeIgniter 4. The `secretKey` value is an important key for HMAC SHA256 authentication and in affected versions was stored in the database in cleartext form. If a malicious person somehow had access to the data in the database, they could use the key and secretKey for HMAC SHA256 authentication to send requests impersonating that corresponding user. This issue has been addressed in version 1.0.0-beta.8. Users are advised to upgrade. There are no known workarounds for this vulnerability.

CodeIgniter is a PHP full-stack web framework. Prior to CodeIgniter4 version 4.4.3, if an error or exception occurs, a detailed error report is displayed even if in the production environment. As a result, confidential information may be leaked. Version 4.4.3 contains a patch. As a workaround, replace `ini_set('display_errors', '0')` with `ini_set('display_errors', 'Off')` in `app/Config/Boot/production.php`.

CodeIgniter is a PHP full-stack web framework. This vulnerability allows attackers to execute arbitrary code when you use Validation Placeholders. The vulnerability exists in the Validation library, and validation methods in the controller and in-model validation are also vulnerable because they use the Validation library internally. This issue is patched in version 4.3.5.

CodeIgniter Shield provides authentication and authorization for the CodeIgniter 4 PHP framework. An improper implementation was found in the password storage process. All hashed passwords stored in Shield v1.0.0-beta.3 or earlier are easier to crack than expected due to the vulnerability. Therefore, they should be removed as soon as possible. If an attacker gets (1) the user's hashed password by Shield, and (2) the hashed password (SHA-384 hash without salt) from somewhere, the attacker may easily crack the user's password. Upgrade to Shield v1.0.0-beta.4 or later to fix this issue. After upgrading, all users’ hashed passwords should be updated (saved to the database). There are no known workarounds.

CodeIgniter is a PHP full-stack web framework. When an application uses (1) multiple session cookies (e.g., one for user pages and one for admin pages) and (2) a session handler is set to `DatabaseHandler`, `MemcachedHandler`, or `RedisHandler`, then if an attacker gets one session cookie (e.g., one for user pages), they may be able to access pages that require another session cookie (e.g., for admin pages). This issue has been patched, please upgrade to version 4.2.11 or later. As a workaround, use only one session cookie.

CodeIgniter is a PHP full-stack web framework. This vulnerability may allow attackers to spoof their IP address when the server is behind a reverse proxy. This issue has been patched, please upgrade to version 4.2.11 or later, and configure `Config\App::$proxyIPs`. As a workaround, do not use `$request->getIPAddress()`.

An access control issue in /Admin/dashboard.php of Record Management System using CodeIgniter v1.0 allows attackers to access and modify user data.

A cross-site scripting (XSS) vulnerability in Record Management System using CodeIgniter 1.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Add Subject page.

B.C. Institute of Technology CodeIgniter <=3.1.13 is vulnerable to SQL Injection via system\database\DB_query_builder.php. Note: Multiple third parties have disputed this as not a valid vulnerability

B.C. Institute of Technology CodeIgniter <=3.1.13 is vulnerable to SQL Injection via system\database\DB_query_builder.php or_not_like() function. Note: Multiple third parties have disputed this as not a valid vulnerability.

B.C. Institute of Technology CodeIgniter <=3.1.13 is vulnerable to SQL Injection via system\database\DB_query_builder.php or_where_in() function. Note: Multiple third parties have disputed this as not a valid vulnerability.

B.C. Institute of Technology CodeIgniter <=3.1.13 is vulnerable to SQL Injection via system\database\DB_query_builder.php having() function. Note: Multiple third parties have disputed this as not a valid vulnerability.

B.C. Institute of Technology CodeIgniter <=3.1.13 is vulnerable to SQL Injection via system\database\DB_query_builder.php like() function. Note: Multiple third parties have disputed this as not a valid vulnerability.

B.C. Institute of Technology CodeIgniter <=3.1.13 is vulnerable to SQL Injection via system\database\DB_query_builder.php where_not_in() function. Note: Multiple third parties have disputed this as not a valid vulnerability.

B.C. Institute of Technology CodeIgniter <=3.1.13 is vulnerable to SQL Injection via system\database\DB_query_builder.php or_like() function. Note: Multiple third parties have disputed this as not a valid vulnerability.

B.C. Institute of Technology CodeIgniter <=3.1.13 is vulnerable to SQL Injection via system\database\DB_query_builder.php or_where_not_in() function. Note: Multiple third parties have disputed this as not a valid vulnerability.

B.C. Institute of Technology CodeIgniter <=3.1.13 is vulnerable to SQL Injection via system\database\DB_query_builder.php where() function. Note: Multiple third parties have disputed this as not a valid vulnerability.

B.C. Institute of Technology CodeIgniter <=3.1.13 is vulnerable to SQL Injection via system\database\DB_query_builder.php or_having() function. Note: Multiple third parties have disputed this as not a valid vulnerability.