Medium severity6.4NVD Advisory· Published Nov 11, 2025· Updated Apr 15, 2026

CVE-2025-11829

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.

Affected products

WordPress/Five9inferred
Range: <=1.1.2
Package: https://wordpress.org/plugins/five9
Five9/Live Chatllm-create
Range: <=1.1.2

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

plugins.trac.wordpress.org/browser/five9/tags/1.1.2/includes/class-widget.phpnvd
www.wordfence.com/threat-intel/vulnerabilities/id/28548108-a004-4aeb-a0ad-269a73a71331nvd

News mentions

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cvss	0.416
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000