CVE-2025-24013
CodeIgniter validation of header name and value
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| NVDNVD · Analyzed | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.51% · top 56% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Weakness
Affected products
- affected < 4.5.8
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Packagistcodeigniter4/frameworkGHSA-x5mq-jjr3-vmx6 (opens in a new tab)
References (4)
- https://github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-x5mq-jjr3-vmx6 (opens in a new tab)x_refsource_CONFIRM
- https://github.com/codeigniter4/CodeIgniter4/commit/5f8aa24280fb09947897d6b322bf1f0e038b13b6 (opens in a new tab)x_refsource_MISC
- https://datatracker.ietf.org/doc/html/rfc7230#section-3.2 (opens in a new tab)x_refsource_MISC
- https://github.com/advisories/GHSA-wxmh-65f7-jcvw (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-x5mq-jjr3-vmx6 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2025-24013)Record last updated .