WordPress Core < 4.7.5 - Cross-Site Scripting via Customizer

2017-05-16 00:00

Weston Ruter

Strategic Overview

Status

Patched in 3.7.21

Affected CoreWordPress 4.7

Affected Version3.7 – 4.7.4 · 12 branches

CVSS5.5Medium

CVECVE-2017-9063

View all WordPress 4.7 vulnerabilities

Vulnerability Overview

In WordPress before 4.7.5, a cross-site scripting (XSS) vulnerability related to the Customizer exists, involving an invalid customization session.

Technical Analysis

REMEDIATION: Update to one of the following versions, or a newer patched version: 3.7.21, 3.8.21, 3.9.19, 4.0.18, 4.1.18, 4.2.15, 4.3.11, 4.4.10, 4.5.9, 4.6.6, 4.7.5 --- IDENTIFIER: CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

External References

https://www.cve.org/CVERecord?id=CVE-2017-9063 https://www.wordfence.com/threat-intel/vulnerabilities/id/f21c70aa-22be-456d-93bb-f478b70deaef

CVSS Vector

5.5

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredHigh
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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