Summary
Cross-Site Request Forgery (CSRF) Protection Bypass Vulnerability in CodeIgniter4
Impact
This vulnerability might allow remote attackers to bypass the CodeIgniter4 CSRF protection mechanism.
Patches
Upgrade to v4.1.9 or later.
Workarounds
These are workarounds for this vulnerability, but you will still need to code as these after upgrading to v4.1.9.
Otherwise, the CSRF protection may be bypassed.
When Auto-Routing is Enabled
- Check the request method in the controller method before processing.
E.g.:
if (strtolower($this->request->getMethod()) !== 'post') {
return $this->response->setStatusCode(405)->setBody('Method Not Allowed');
}
When Auto-Routing is Disabled
Do one of the following:
- Do not use
$routes->add(), and use HTTP verbs in routes. - Check the request method in the controller method before processing.
E.g.:
if (strtolower($this->request->getMethod()) !== 'post') {
return $this->response->setStatusCode(405)->setBody('Method Not Allowed');
}
References
For more information
If you have any questions or comments about this advisory:
- Open an issue in codeigniter4/CodeIgniter4
- Email us at SECURITY.md
Impact
A victim's authenticated browser session is used to submit forged requests to an application that cannot distinguish them from legitimate ones. Typical impact: state-changing actions performed as the victim without their consent.
CVE-2022-24712 has a CVSS score of 6.3 (Medium). The vector is network-reachable, low privileges required, and user interaction required. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (4.1.9); upgrading removes the vulnerable code path.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
Already deployed Kodem?
See it in your environmentNew to Kodem? Get a demo →Remediation advice
Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.
Frequently Asked Questions
- What is CVE-2022-24712? CVE-2022-24712 is a medium-severity cross-site request forgery (CSRF) vulnerability in codeigniter4/framework (composer), affecting versions < 4.1.9. It is fixed in 4.1.9. A victim's authenticated browser session is used to submit forged requests to an application that cannot distinguish them from legitimate ones.
- How severe is CVE-2022-24712? CVE-2022-24712 has a CVSS score of 6.3 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
- Which versions of codeigniter4/framework are affected by CVE-2022-24712? codeigniter4/framework (composer) versions < 4.1.9 is affected.
- Is there a fix for CVE-2022-24712? Yes. CVE-2022-24712 is fixed in 4.1.9. Upgrade to this version or later.
- Is CVE-2022-24712 exploitable, and should I be worried? Whether CVE-2022-24712 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2022-24712 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2022-24712? Upgrade
codeigniter4/frameworkto 4.1.9 or later.