XSS in Gutentools
CVE-2026-1395
The Gutentools plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Post Slider block's block_id attribute in all versions up to, and including, 1.1.3. This is due to insufficient input sanitization and output escaping…
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.000 (2.5th percentile) — read the EPSS interpretation.
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.
Affected products
- Gutentools — versions 0
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/b2683b4e-b993-4c84-b7cc-a2cb5…
- plugins.trac.wordpress.org/browser/gutentools/trunk/core/blocks/post-slider.php
- plugins.trac.wordpress.org/browser/gutentools/tags/1.1.3/core/blocks/post-slide…
- plugins.trac.wordpress.org/browser/gutentools/trunk/core/gutentools_block.php
- plugins.trac.wordpress.org/changeset/3476597/gutentools/trunk/core/blocks/post-…
Frequently asked questions
- What is CVE-2026-1395?
- CVE-2026-1395 is a medium-severity vulnerability in Gutentools, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-04-22.
- How severe is CVE-2026-1395?
- Medium severity. CVSS v3 base score is 6.4 out of 10.