User Submitted Posts <= 20260110 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'usp_access' Shortcode

2026-01-15 00:00

Muhammad Yudha - DJ

Strategic Overview

Status

Patched in 20260113

Affected PluginUser Submitted Posts – Enable Users to Submit Posts from the Front End

Affected Version<= 20260110

CVSS6.4Medium

CVECVE-2026-0913

View all User Submitted Posts – Enable Users to Submit Posts from the Front End vulnerabilities

Vulnerability Overview

The User Submitted Posts – Enable Users to Submit Posts from the Front End plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'usp_access' shortcode in all versions up to, and including, 20260110 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 20260113, 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-2026-0913 https://www.wordfence.com/threat-intel/vulnerabilities/id/85bf7a1b-3c54-40c9-8f19-fcb9dd478a0e

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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