CVE-2016-4029
HIGH severity · CVSS 8.6 · Server-side request forgery (SSRF)
8.6CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactHigh
Availability impactNone
Exploit probability (EPSS)5%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://core.trac.wordpress.org/query?status=closed&milestone=4.5 ↗