Is CVE-2025-24013 in the CISA KEV catalog?

No. CVE-2025-24013 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-24013?

CVE-2025-24013 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2025-24013?

CVE-2025-24013 has an EPSS score of 0.48% (38th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-24013?

Upgrade codeigniter to 4.5.8 or later.

CVE & CISA-KEV Catalog

CVE-2025-24013

MEDIUM

5.3

CVSS v3

NVD

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.

CWE-436

How to fix

Remediation Available

codeigniterNVD

Affected:< 4.5.8Fixed in:4.5.8CVE-2025-24013derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Exploit Intelligence

0.48%probability of exploitation in 30 days

38thpercentile

Low risk: more likely to be exploited than 38% of all known CVEs.

References

Patch1

github.com

Vendor Advisory1

github.com

Technical Description1

datatracker.ietf.org

Other references1

github.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-08-01.