Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2025-24013

CodeIgniter is a PHP full-stack web framework. Prior to 4.5.8, CodeIgniter lacked proper header validation for its name and value. The potential attacker can construct deliberately malformed headers with Header class. This could disrupt application functionality, potentially causing errors or generating invalid HTTP requests. In some cases, these malformed requests might lead to a DoS scenario if a remote service’s web application firewall interprets them as malicious and blocks further communication with the application. This vulnerability is fixed in 4.5.8.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 26.2%
CVSS Severity
CVSS v3 Score 5.3
Products affected by CVE-2025-24013


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