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Vulnerability details: VCID-p6ns-5khc-77au
Vulnerability ID VCID-p6ns-5khc-77au
Aliases CVE-2025-24013
GHSA-x5mq-jjr3-vmx6
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-436 Interpretation Conflict
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00191 https://api.first.org/data/v1/epss?cve=CVE-2025-24013
epss 0.00191 https://api.first.org/data/v1/epss?cve=CVE-2025-24013
epss 0.00191 https://api.first.org/data/v1/epss?cve=CVE-2025-24013
cvssv3.1 5.3 https://datatracker.ietf.org/doc/html/rfc7230#section-3.2
generic_textual MODERATE https://datatracker.ietf.org/doc/html/rfc7230#section-3.2
ssvc Track https://datatracker.ietf.org/doc/html/rfc7230#section-3.2
cvssv3.1 5.3 https://github.com/advisories/GHSA-wxmh-65f7-jcvw
generic_textual MODERATE https://github.com/advisories/GHSA-wxmh-65f7-jcvw
ssvc Track https://github.com/advisories/GHSA-wxmh-65f7-jcvw
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-x5mq-jjr3-vmx6
cvssv3.1 5.3 https://github.com/codeigniter4/CodeIgniter4
generic_textual MODERATE https://github.com/codeigniter4/CodeIgniter4
cvssv3.1 5.3 https://github.com/codeigniter4/CodeIgniter4/commit/5f8aa24280fb09947897d6b322bf1f0e038b13b6
generic_textual MODERATE https://github.com/codeigniter4/CodeIgniter4/commit/5f8aa24280fb09947897d6b322bf1f0e038b13b6
ssvc Track https://github.com/codeigniter4/CodeIgniter4/commit/5f8aa24280fb09947897d6b322bf1f0e038b13b6
cvssv3.1 5.3 https://github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-x5mq-jjr3-vmx6
cvssv3.1_qr MODERATE https://github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-x5mq-jjr3-vmx6
generic_textual MODERATE https://github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-x5mq-jjr3-vmx6
ssvc Track https://github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-x5mq-jjr3-vmx6
cvssv3.1 5.3 https://nvd.nist.gov/vuln/detail/CVE-2025-24013
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2025-24013
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2025-24013
https://github.com/codeigniter4/CodeIgniter4
https://nvd.nist.gov/vuln/detail/CVE-2025-24013
5f8aa24280fb09947897d6b322bf1f0e038b13b6 https://github.com/codeigniter4/CodeIgniter4/commit/5f8aa24280fb09947897d6b322bf1f0e038b13b6
GHSA-wxmh-65f7-jcvw https://github.com/advisories/GHSA-wxmh-65f7-jcvw
GHSA-x5mq-jjr3-vmx6 https://github.com/advisories/GHSA-x5mq-jjr3-vmx6
GHSA-x5mq-jjr3-vmx6 https://github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-x5mq-jjr3-vmx6
rfc7230#section-3.2 https://datatracker.ietf.org/doc/html/rfc7230#section-3.2
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Found at https://datatracker.ietf.org/doc/html/rfc7230#section-3.2
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-01-21T14:50:53Z/ Found at https://datatracker.ietf.org/doc/html/rfc7230#section-3.2
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Found at https://github.com/advisories/GHSA-wxmh-65f7-jcvw
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-01-21T14:50:53Z/ Found at https://github.com/advisories/GHSA-wxmh-65f7-jcvw
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Found at https://github.com/codeigniter4/CodeIgniter4
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Found at https://github.com/codeigniter4/CodeIgniter4/commit/5f8aa24280fb09947897d6b322bf1f0e038b13b6
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-01-21T14:50:53Z/ Found at https://github.com/codeigniter4/CodeIgniter4/commit/5f8aa24280fb09947897d6b322bf1f0e038b13b6
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Found at https://github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-x5mq-jjr3-vmx6
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-01-21T14:50:53Z/ Found at https://github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-x5mq-jjr3-vmx6
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2025-24013
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.40966
EPSS Score 0.00191
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-11T17:16:48.187019+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2025/24xxx/CVE-2025-24013.json 38.6.0