WordPress Core < 4.7.3 - Authenticated Cross-Site Scripting in Youtube URL Embeds

2017-03-06 00:00

Marc-Alexandre Montpas

Strategic Overview

Status

Patched in 3.7.19

Affected CoreWordPress 4.7

Affected Version3.7 – 4.7.2 · 12 branches

CVSS6.4Medium

CVECVE-2017-6817

View all WordPress 4.7 vulnerabilities

Vulnerability Overview

In WordPress before 4.7.3 (wp-includes/embed.php), there is authenticated Cross-Site Scripting (XSS) in YouTube URL Embeds.

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-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-2017-6817 https://www.wordfence.com/threat-intel/vulnerabilities/id/0788659e-be5b-413d-b4fb-d60df07075e1

CVSS Vector

6.4

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

Base

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

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