CVE-2026-19797

Deferred Deferred - Pending Action

Reflected Cross-Site Scripting in User Access Manager WordPress Plugin

Publication date: 2026-09-09

Last updated on: 2026-09-11

Assigner: Wordfence

Description

The User Access Manager plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'tab_group_section' parameter in all versions up to, and including, 2.3.18 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-09

Last Modified

2026-09-11

Generated

2026-09-29

AI Q&A

2026-09-10

EPSS Evaluated

2026-09-27

NVD

CVE-2026-19797

EUVD

EUVD-2026-74605

Affected Vendors & Products

Vendor	Product	Version / Range
plugin_developer	user_access_manager	to 2.3.18 (inc)

Helpful Resources

Exploitability

CWE

KEV

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.

Attack-Flow Graph

Executive Summary

The User Access Manager plugin for WordPress has a reflected cross-site scripting (XSS) vulnerability. This occurs because the 'tab_group_section' parameter does not properly sanitize or escape user input, allowing attackers to inject malicious scripts. These scripts execute when a user clicks a specially crafted link.

Detection Guidance

This vulnerability can be detected by checking if the User Access Manager plugin for WordPress is installed and if it is version 2.3.18 or below. Inspect WordPress plugin directories for the plugin files and review the version in the plugin's main file or WordPress admin panel.

Impact Analysis

Unauthenticated attackers could trick users into clicking a malicious link, leading to arbitrary script execution in their browser. This could result in session hijacking, data theft, or unauthorized actions on behalf of the user.

Compliance Impact

This vulnerability could lead to unauthorized access to user data, potentially violating GDPR (data protection) and HIPAA (health data privacy) by exposing sensitive information. Compliance may be compromised if user data is compromised through this exploit.

Mitigation Strategies

Immediately update the User Access Manager plugin to the latest version if available. If no update is available, consider disabling or removing the plugin until a patch is released. Additionally, implement web application firewalls and monitor for unusual activity.

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