CVE-2026-1055
MEDIUMCVSS Vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
Lifecycle Timeline
2Description
The TalkJS plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 0.1.15 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Analysis
Stored XSS in the TalkJS WordPress plugin through version 0.1.15 permits high-privilege administrators to inject malicious scripts into admin settings that execute for all users viewing affected pages, restricted to multisite installations or those with unfiltered_html disabled. The vulnerability stems from inadequate input sanitization and output escaping in the plugin's settings handling. …
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Remediation
Within 30 days: Identify affected systems running for WordPress is vulnerable to Stored Cross-Site Scripting v and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.
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External POC / Exploit Code
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