CVE-2026-19797: User Access Manager <= 2.3.18 - Reflected Cross-Site Scripting via 'tab_group_section' Parameter
The User Access Manager plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'tabgroupsection' 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 Software
Event History
Frequently Asked Questions
Who can exploit this issue, and what interaction is required?
An unauthenticated attacker can craft a request containing malicious script in the tab_group_section parameter. Exploitation requires convincing a user to perform an action such as clicking the attacker-controlled link.
Which plugin versions are affected?
User Access Manager versions up to and including 2.3.18 are affected. The provided data does not identify a fixed version.
What is the potential impact if exploitation succeeds?
Script can execute in the affected user's browser in the context of the vulnerable site. The supplied severity vector indicates low confidentiality and integrity impact, with no availability impact.