Yuzo Related Posts <= 5.12.93 - Missing Authorization to Stored Cross-Site Scripting

2019-04-10 00:00

Daniel van Dorp

Strategic Overview

Status

Patched in 5.12.94

Affected PluginYUZO

Affected Version< 5.12.94

CVSS7.2High

CVECVE-2019-11869

View all YUZO vulnerabilities

Vulnerability Overview

The Yuzo Related Posts plugin 5.12.94 for WordPress has XSS because it mistakenly expects that is_admin() verifies that the request comes from an admin user (it actually only verifies that the request is for an admin page). An unauthenticated attacker can inject a payload into the plugin settings, such as the yuzo_related_post_css_and_style setting.

Technical Analysis

REMEDIATION: Update to version 5.12.94, or a newer patched version --- 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-2019-11869 https://www.wordfence.com/threat-intel/vulnerabilities/id/d392b84b-2a1f-430c-84a1-22431763a6a5

CVSS Vector

7.2

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

Base

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

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