WordPress Core < 4.7.1 - Stored Cross-Site Scripting via theme directory name

2017-01-11 00:00

Mehmet Ince

Strategic Overview

Status

Patched in 3.7.17

Affected CoreWordPress 4.7

Affected Version3.7 – 4.7.0 · 12 branches

CVSS5.5Medium

CVECVE-2017-5490

View all WordPress 4.7 vulnerabilities

Vulnerability Overview

Cross-site scripting (XSS) vulnerability in the theme-name fallback functionality in wp-includes/class-wp-theme.php in WordPress before 4.7.1 allows remote attackers to inject arbitrary web script or HTML via a crafted directory name of a theme, related to wp-admin/includes/class-theme-installer-skin.php.

Technical Analysis

REMEDIATION: Update to one of the following versions, or a newer patched version: 3.7.17, 3.8.17, 3.9.15, 4.0.14, 4.1.14, 4.2.11, 4.3.7, 4.4.6, 4.5.5, 4.6.2, 4.7.1 --- 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-2017-5490 https://www.wordfence.com/threat-intel/vulnerabilities/id/f10fdf31-6941-4d41-8c15-90ed61addc2f

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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