---
id: CVE-2026-19797
title: >-
  User Access Manager <= 2.3.18 - Reflected Cross-Site Scripting via
  'tab_group_section' Parameter
summary: >-
  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. T…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-79
vendor: gm_alex
product: User Access Manager
affected:
  - user_access_manager <= 2.3.18
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-11T20:10:38.953908Z'
published: '2026-09-09'
updated: '2026-09-11'
sourceUpdated: '2026-09-11T20:19:14.706Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-19797'
references:
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/a7e1fd8f-548e-4fb2-9ee4-b24c412aaa8e?source=cve
  - url: >-
      https://plugins.trac.wordpress.org/browser/user-access-manager/tags/2.3.18/src/View/AdminSettings.php#L55
  - url: >-
      https://plugins.trac.wordpress.org/browser/user-access-manager/tags/2.3.18/src/Controller/BaseControllerTrait.php#L37
  - url: >-
      https://plugins.trac.wordpress.org/browser/user-access-manager/tags/2.3.18/src/Controller/BaseControllerTrait.php#L45
  - url: >-
      https://plugins.trac.wordpress.org/browser/user-access-manager/tags/2.3.18/src/Controller/Backend/ControllerTabNavigationTrait.php#L39
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&old=3680890%40user-access-manager&new=3680890%40user-access-manager
tags:
  - cve.org
epss: 0.00215
epssPercentile: 0.10568
ingestedAt: '2026-09-14T11:11:19.883Z'
---

## Overview

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.

## Affected

- `user_access_manager <= 2.3.18`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.