CVE-2025-11829
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-11-11

Last updated on: 2025-11-12

Assigner: Wordfence

Description
The Five9 Live Chat plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'toolbar' attribute of the [five9-chat] shortcode in all versions up to, and including, 1.1.2. This is due to insufficient input sanitization and output escaping. 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.
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Meta Information
Published
2025-11-11
Last Modified
2025-11-12
Generated
2026-06-16
AI Q&A
2025-11-11
EPSS Evaluated
2026-06-14
NVD
CVE-2025-11829
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
five9 live_chat 1.1.2
Helpful Resources
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

The vulnerability is a Stored Cross-Site Scripting (XSS) issue in the Five9 Live Chat plugin for WordPress. It occurs via the 'toolbar' attribute of the [five9-chat] shortcode in versions up to 1.1.2. Due to insufficient input sanitization and output escaping, authenticated users with contributor-level access or higher can inject malicious web scripts into pages. These scripts execute whenever any user accesses the injected page.

Impact Analysis

This vulnerability can allow attackers with contributor-level access to inject malicious scripts into web pages, which will execute in the browsers of users who visit those pages. This can lead to theft of user data, session hijacking, defacement, or other malicious actions performed in the context of the affected website.

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