CVE-2026-1401

The Tune Library plugin for WordPress is vulnerable to Stored Cross-Site Scripting via CSV import in all versions up to, and including, 1.6.3. This is due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the injected page. The vulnerability exists because the CSV import functionality lacks authorization checks and doesn't sanitize imported data, which is later rendered without escaping through the [tune-library] shortcode.

• CWE-79

• https://plugins.trac.wordpress.org/browser/tune-library/tags/1.6.3/tune-library.php#L219
• https://plugins.trac.wordpress.org/browser/tune-library/tags/1.6.3/tune-library.php#L235
• https://plugins.trac.wordpress.org/browser/tune-library/tags/1.6.3/writeNodes.php#L113
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3451457%40tune-library&new=3451457%40tune-library&sfp_email=&sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/cd600810-b1bc-4025-b441-5c90da7240de?source=cve

Published

Feb 6, 2026

Last Modified

Jun 17, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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