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.
CVE-2026-1395 is a medium severity with CVSS 6.4 Stored Cross-Site Scripting issue affecting the Plugin Gutentools. It affects Versions up to 1.1.3 and is fixed in 1.1.4.
CVE-2026-1395 is tracked for the Plugin Gutentools as medium severity with CVSS 6.4. The affected range is Versions up to 1.1.3. Update Gutentools to 1.1.4 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
gutentools
View on wordpress.org
|
| CVE | CVE-2026-1395 |
| Patched Versions |
1.1.4
|
| Affected Versions |
Versions up to 1.1.3
|
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