XSS in Jackdewey Tune Library
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (14.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 14.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- Jackdewey Tune Library — versions 0
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/cd600810-b1bc-4025-b441-5c90d…
- plugins.trac.wordpress.org/browser/tune-library/tags/1.6.3/tune-library.php
- plugins.trac.wordpress.org/browser/tune-library/tags/1.6.3/tune-library.php
- plugins.trac.wordpress.org/browser/tune-library/tags/1.6.3/writeNodes.php
- plugins.trac.wordpress.org/changeset
Frequently asked questions
- What is CVE-2026-1401?
- CVE-2026-1401 is a medium-severity vulnerability in Jackdewey Tune Library, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-02-06.
- How severe is CVE-2026-1401?
- Medium severity. CVSS v3 base score is 6.4 out of 10.