Vulnerabilidades

The xss_clean function in CodeIgniter before 2.1.4 might allow remote attackers to bypass an intended protection mechanism and conduct cross-site scripting (XSS) attacks via an unclosed HTML tag.

British Columbia Institute of Technology CodeIgniter 3.1.3 is vulnerable to HTTP Header Injection in the set_status_header() common function under Apache resulting in HTTP Header Injection flaws.

CodeIgniter before 2.2.0 makes it easier for attackers to decode session cookies by leveraging fallback to a custom XOR-based encryption scheme when the Mcrypt extension for PHP is not available.

CodeIgniter before 3.0 and Kohana 3.2.3 and earlier and 3.3.x through 3.3.2 make it easier for remote attackers to spoof session cookies and consequently conduct PHP object injection attacks by leveraging use of standard string comparison operators to compare cryptographic hashes.

system/libraries/Email.php in CodeIgniter before 3.1.3 allows remote attackers to execute arbitrary code by leveraging control over the email->from field to insert sendmail command-line arguments.

CodeIgniter 1.7.2 allows remote attackers to obtain sensitive information via a direct request to a .php file, which reveals the installation path in an error message, as demonstrated by system/scaffolding/views/view.php and certain other files.

Directory traversal vulnerability in index.php in CodeIgniter 1.5.3 before 20070628, when enable_query_strings is true, allows remote attackers to read arbitrary files via a .. (dot dot) in the c parameter.

CRLF injection vulnerability in the redirect function in url_helper.php in CodeIgniter 1.5.3 allows remote attackers to inject arbitrary HTTP headers via CRLF sequences in an unspecified parameter, as demonstrated by a Set-Cookie header.

Cross-site scripting (XSS) vulnerability in CodeIgniter 1.5.3 before 20070626 allows remote attackers to inject arbitrary web script or HTML via (1) String.fromCharCode and (2) malformed nested tag manipulations in an unspecified component, related to insufficient sanitization by the xss_clean function.

The _sanitize_globals function in CodeIgniter 1.5.3 before 20070628 allows remote attackers to unset arbitrary global variables with unspecified impact, as demonstrated by a _SERVER cookie.