WP Ultimate Post Grid <= 3.9.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via wpupg-text Shortcode

2024-05-22 17:51

Krzysztof Zając

Strategic Overview

Status

Patched in 3.9.2

Affected PluginWP Ultimate Post Grid

Affected Version<= 3.9.1

CVSS6.4Medium

CVECVE-2024-4043

View all WP Ultimate Post Grid vulnerabilities

Vulnerability Overview

The WP Ultimate Post Grid plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'wpupg-text' shortcode in all versions up to, and including, 3.9.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Technical Analysis

REMEDIATION: Update to version 3.9.2, 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-2024-4043 https://www.wordfence.com/threat-intel/vulnerabilities/id/14e897f0-11e6-43b1-908c-be4ecdc7fd58

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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