Is CVE-2016-4029 in the CISA KEV catalog?

No. CVE-2016-4029 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-4029?

CVE-2016-4029 has a CVSS v3 base score of 8.6 (HIGH).

What is the EPSS score for CVE-2016-4029?

CVE-2016-4029 has an EPSS score of 4.57% (90th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-4029?

Upgrade wordpress on debian 11 to 4.5+dfsg-1 or later.

CVE & CISA-KEV Catalog

CVE-2016-4029

HIGHEPSS 90th pctl

8.6

CVSS v3

NVD

Description

WordPress before 4.5 does not consider octal and hexadecimal IP address formats when determining an intranet address, which allows remote attackers to bypass an intended SSRF protection mechanism via a crafted address.

CWE-918Server-Side Request Forgery (SSRF)

How to fix

Remediation Available

wordpressDebian

Fixed in:4.5+dfsg-1CVE-2016-4029

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

ScopeChanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

4.57%probability of exploitation in 30 days

90thpercentile

High risk: more likely to be exploited than 90% of all known CVEs.

References

Patch1

core.trac.wordpress.org

Third-Party Advisory1

securitytracker.com

Mailing List1

debian.org

Release Notes1

codex.wordpress.org

Other references1

wpvulndb.com

Related Vulnerabilities

Other CWE-918 (Server-Side Request Forgery (SSRF)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-21893	High	8.2	100%	KEV + Ransom	-
CVE-2021-40438	Critical	9.0	100%	KEV	Fix
CVE-2021-34473	Critical	9.1	100%	KEV + Ransom	Fix
CVE-2021-26855	Critical	9.1	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2022-41040	High	8.8	100%	KEV + Ransom	Fix

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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 2026-05-06.