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

CodeIgniter is a PHP full-stack web framework. In versions prior to 4.2.7 setting `$secure` or `$httponly` value to `true` in `Config\Cookie` is not reflected in `set_cookie()` or `Response::setCookie()`. As a result cookie values are erroneously exposed to scripts. It should be noted that this vulnerability does not affect session cookies. Users are advised to upgrade to v4.2.7 or later. Users unable to upgrade are advised to manually construct their cookies either by setting the options in code or by constructing Cookie objects. Examples of each workaround are available in the linked GHSA.

TastyIgniter v3.5.0 was discovered to contain a cross-site scripting (XSS) vulnerability which allows attackers to execute arbitrary web scripts or HTML via a crafted payload.

Ecommerce-CodeIgniter-Bootstrap before commit 56465f was discovered to contain a cross-site scripting (XSS) vulnerability via the function base_url() at /blog/blogpublish.php.

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/security.html) mechanism with CodeIgniter Shield. For this attack to succeed, the attacker must have direct (or indirect, e.g., XSS) control over a subdomain site (e.g., `https://a.example.com/`) of the target site (e.g., `http://example.com/`). Upgrade to **CodeIgniter v4.2.3 or later** and **Shield v1.0.0-beta.2 or later**. As a workaround: set `Config\Security::$csrfProtection` to `'session,'`remove old session data right after login (immediately after ID and password match) and regenerate CSRF token right after login (immediately after ID and password match)

Bootstrap v3.1.11 and v3.3.7 was discovered to contain a cross-site scripting (XSS) vulnerability via the Title parameter in /vendor/views/add_product.php.

Cross-site Scripting (XSS) - DOM in GitHub repository tastyigniter/tastyigniter prior to 3.3.0.

An issue was discovered in Pascom Cloud Phone System before 7.20.x. A configuration error between NGINX and a backend Tomcat server leads to a path traversal in the Tomcat server, exposing unintended endpoints.

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 version 4.1.9. There are workarounds for this vulnerability, but users will still need to code as these after upgrading to v4.1.9. Otherwise, the CSRF protection may be bypassed. If auto-routing is enabled, check the request method in the controller method before processing. If auto-routing is disabled, either avoid using `$routes->add()` and instead use HTTP verbs in routes; or check the request method in the controller method before processing.

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 known workarounds for this vulnerability.