Codeigniter4 vulnerabilities
We track 14 vulnerabilities in Codeigniter4 products across 2 products. 14 are rated high or critical, and none are known to be exploited. The most recent was published on July 31, 2026.
Latest Codeigniter4 vulnerabilities
- 9.8 Critical severity
CodeIgniter4: Unrestricted Upload of File with Dangerous Type
CodeIgniter is a PHP full-stack web framework. Prior to 4.7.4, the is_image and mime_in upload validation rules do not independently enforce a safe client filename extension, allowing a remote attacker to upload executable content when an application preserves
- 7.5 High severity
CodeIgniter4: Improper Limitation of a Pathname to a Restricted Directory
CodeIgniter is a PHP full-stack web framework. Prior to 4.7.4, calling UploadedFile::move() without a second argument uses the client-provided filename without sanitization, allowing a remote attacker to use path traversal sequences to write uploaded content o
- 9.4 Critical severity
CodeIgniter4: Improper Neutralization of Special Elements used in an SQL Command
CodeIgniter is a PHP full-stack web framework. From 4.3.0 through 4.7.3, Query Builder deleteBatch() substitutes bound values from where() conditions into generated SQL while ignoring their escape flags, allowing user-controlled condition values to be interpre
- 9.8 Critical severity
CodeIgniter4: Unrestricted Upload of File with Dangerous Type
CodeIgniter is a PHP full-stack web framework. Prior to 4.7.3, the ext_in upload validation rule in system/Validation/StrictRules/FileRules.php checked the MIME-derived guessed extension instead of the client-provided filename extension. As a result, an upload
- 9.8 Critical severity
CodeIgniter4: Improper Neutralization of Special Elements used in an OS Command
CodeIgniter is a PHP full-stack web framework. A command injection vulnerability present in versions prior to 4.6.2 affects applications that use the ImageMagick handler for image processing (`imagick` as the image library) and either allow file uploads with u
- 7.5 High severity
CodeIgniter4: Uncontrolled Recursion
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.
- 7.5 High severity
CodeIgniter4: Generation of Error Message Containing Sensitive Information
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
- 9.8 Critical severity
CodeIgniter4: Improper Control of Generation of Code
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 validat
- 9.8 Critical severity
CodeIgniter4: Improper Authentication
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 att
- 7.5 High severity
CodeIgniter4: Insufficient Verification of Data Authenticity
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::$proxy
- 8.8 High severity
shield: Cross-Site Request Forgery
Shield is an authentication and authorization framework for CodeIgniter 4. This vulnerability may allow [SameSite Attackers](https://canitakeyoursubdomain.name/) to bypass the [CodeIgniter4 CSRF protection](https://codeigniter4.github.io/userguide/libraries/se
- 8.8 High severity
CodeIgniter4: Cross-Site Request Forgery
CodeIgniter4 is the 4.x branch of CodeIgniter, a PHP full-stack web framework. A vulnerability in versions prior to 4.1.9 might allow remote attackers to bypass the CodeIgniter4 Cross-Site Request Forgery (CSRF) protection mechanism. Users should upgrade to ve
- 9.8 Critical severity
CodeIgniter4 is the 4.x branch of CodeIgniter, a PHP full-stack web framework.
CodeIgniter4 is the 4.x branch of CodeIgniter, a PHP full-stack web framework. Prior to version 4.1.9, an improper input validation vulnerability allows attackers to execute CLI routes via HTTP request. Version 4.1.9 contains a patch. There are currently no kn
- 9.8 Critical severity
CodeIgniter4: Deserialization of Untrusted Data
CodeIgniter is an open source PHP full-stack web framework. Deserialization of Untrusted Data was found in the `old()` function in CodeIgniter4. Remote attackers may inject auto-loadable arbitrary objects with this vulnerability, and possibly execute existing