How severe is CVE-2016-4793?

CVE-2016-4793 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2016-4793 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-4793?

CVE-2016-4793 affects Cakephp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-4793?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2016-4793 published?

CVE-2016-4793 was published on 2017-01-23 and last updated on 2026-06-17.

CVE-2016-4793

CVE-2016-4793 is a high-severity vulnerability in Cakephp with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Cakephp
Published: 2017-01-23
Last modified: 2026-06-17

Description

The clientIp function in CakePHP 3.2.4 and earlier allows remote attackers to spoof their IP via the CLIENT-IP HTTP header.

Frequently asked questions

What is CVE-2016-4793?: The clientIp function in CakePHP 3.2.4 and earlier allows remote attackers to spoof their IP via the CLIENT-IP HTTP header.
How severe is CVE-2016-4793?: CVE-2016-4793 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2016-4793 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-4793?: CVE-2016-4793 affects Cakephp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-4793?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2016-4793 published?: CVE-2016-4793 was published on 2017-01-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cakephp:cakephp:*:*:*:*:*:*:*:*

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