CVE-2026-123460
Deferred Deferred - Pending Action

Stored XSS in WordPress File Upload Plugin

Publication date: 2026-11-09

Last updated on: 2026-11-09

Assigner: Patchstack

Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Nickboss WordPress File Upload wp-file-upload allows Stored XSS.This issue affects WordPress File Upload: from n/a through 5.2.2.

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Meta Information

Published
2026-11-09
Last Modified
2026-11-09
Generated
2026-11-09
AI Q&A
2026-11-09
EPSS Evaluated
N/A
NVD
CVE-2026-123460
EUVD
EUVD-2026-119994

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
nickboss wp_file_upload to 5.2.2 (inc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 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.

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Executive Summary

This is a Stored Cross-Site Scripting (XSS) vulnerability in the Nickboss WordPress File Upload plugin. It allows attackers to inject malicious scripts into web pages that are then stored on the server and served to other users. The issue arises from improper neutralization of user input during web page generation.

Detection Guidance

To detect this stored XSS vulnerability in the WordPress File Upload plugin, inspect web forms or file upload interfaces for improper input handling. Check plugin versions and compare against vulnerable versions (up to 5.2.2). Look for unexpected script execution in user-generated content or file names.

Impact Analysis

An attacker could exploit this to steal user sessions, deface websites, or redirect users to malicious sites. Users visiting infected pages may have their data compromised or be tricked into performing unintended actions. The vulnerability affects all users interacting with the vulnerable plugin version.

Compliance Impact

This vulnerability could lead to data breaches, violating GDPR's data protection requirements or HIPAA's safeguards for protected health information. Organizations may face fines, legal liabilities, and reputational damage if exploited due to inadequate security controls.

Mitigation Strategies

Immediately update the WordPress File Upload plugin to the latest version beyond 5.2.2. Disable the plugin if updates are unavailable. Implement input validation and output encoding for user-supplied data. Monitor for suspicious activities or unauthorized script execution.

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