CVE-2026-1395
Gutentools <= 1.1.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Post Slider Block Attributes
CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
0th
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 combined with a custom unescaping routine that reintroduces dangerous characters. 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.
| CWE | CWE-79 |
| Vendor | gutentools |
| Product | gutentools |
| Published | Apr 22, 2026 |
| Last Updated | Apr 22, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
gutentools / Gutentools
0 ≤ 1.1.3
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/b2683b4e-b993-4c84-b7cc-a2cb511b4097?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/gutentools/trunk/core/blocks/post-slider.php#L232 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/gutentools/tags/1.1.3/core/blocks/post-slider.php#L232 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/gutentools/trunk/core/gutentools_block.php#L123 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3476597/gutentools/trunk/core/blocks/post-slider.php
Credits
Athiwat Tiprasaharn Itthidej Aramsri