WordPress Core < 4.7.3 - Bypass URL Validation

2017-03-06 00:00

Daniel Chatfield

Strategic Overview

Status

Patched in 3.7.19

Affected CoreWordPress 4.7

Affected Version3.7 – 4.7.2 · 12 branches

CVSS6.1Medium

CVECVE-2017-6815

View all WordPress 4.7 vulnerabilities

Vulnerability Overview

In WordPress before 4.7.3 (wp-includes/pluggable.php), control characters can trick redirect URL validation.

Technical Analysis

REMEDIATION: Update to one of the following versions, or a newer patched version: 3.7.19, 3.8.19, 3.9.17, 4.0.16, 4.1.16, 4.2.13, 4.3.9, 4.4.8, 4.5.7, 4.6.4, 4.7.3 --- IDENTIFIER: CWE-20 (Improper Input Validation) The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

External References

https://www.cve.org/CVERecord?id=CVE-2017-6815 https://www.wordfence.com/threat-intel/vulnerabilities/id/0ed8ee65-d910-42a4-b6de-3229346dc59e

CVSS Vector

6.1

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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