CVE-2023-4779 Information

Description

The User Submitted Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin’s [usp_gallery] shortcode in versions up to and including 20230811 due to insufficient input sanitization and output escaping on user supplied attributes like ‘before’. 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.

CVSS Vector

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

Reference

https://www.wordfence.com/threat-intel/vulnerabilities/id/d21ca709-183f-4dd1-849c-f1b2a4f7ec43?source=cve https://plugins.trac.wordpress.org/changeset/2961841

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

6.4