VK All in One Expansion Unit <= 9.85.0.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode

2023-02-03 00:00

István Márton

Strategic Overview

Status

Patched in 9.86.0.0

Affected PluginVK All in One Expansion Unit

Affected Version<= 9.85.0.1

CVSS6.4Medium

CVECVE-2023-0230

View all VK All in One Expansion Unit vulnerabilities

Vulnerability Overview

The VK All in One Expansion Unit plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's shortcode(s) in versions up to, and including, 9.85.0.1 due to insufficient input sanitization and output escaping on user supplied attributes such as class_name. This makes it possible for authenticated attackers with contributor level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Technical Analysis

REMEDIATION: Update to version 9.86.0.0, 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-2023-0230 https://www.wordfence.com/threat-intel/vulnerabilities/id/c1f10e67-d301-46ba-b92e-432819cb9606

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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