WordPress Core < 4.9.5 - Security Misconfiguration with URL Hostnames

2018-04-03 00:00

Anonymous

Strategic Overview

Status

Patched in 3.7.26

Affected CoreWordPress 4.9

Affected Version3.7 – 4.9.4 · 14 branches

CVSS4.3Medium

CVECVE-2018-10101

View all WordPress 4.9 vulnerabilities

Vulnerability Overview

Before WordPress 4.9.5, the URL validator assumed URLs with the hostname localhost were on the same host as the WordPress server.

Technical Analysis

REMEDIATION: Update to one of the following versions, or a newer patched version: 3.7.26, 3.8.26, 3.9.24, 4.0.23, 4.1.23, 4.2.20, 4.3.16, 4.4.15, 4.5.14, 4.6.11, 4.7.10, 4.8.6, 4.9.5 --- IDENTIFIER: CWE-601 (URL Redirection to Untrusted Site ('Open Redirect')) The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.

External References

https://www.cve.org/CVERecord?id=CVE-2018-10101 https://www.wordfence.com/threat-intel/vulnerabilities/id/70352973-5fa7-40b0-9e07-eab2e96520b7

CVSS Vector

4.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityNone
AvailabilityNone

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