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OpenAdvisories
Medium · 6.4 CVE-2025-11829 EUVD-2025-60970GHSA-g46h-r8hj-w7cg

Five9 Live Chat <= 1.1.2 - Authenticated (Contributor+) Stored Cross-Site Scripting

Published Nov 11, 2025 · Updated Apr 8, 2026 · Assigned by 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.

Affected products

VendorProductAffectedFixed
five9 Five9 Live Chat ≤ 1.1.2 —

References