Stored Cross-Site Scripting in Gutentools Plugin for WordPress
CVE-2026-1395

6.4MEDIUM

Key Information:

Vendor

WordPress
Status
Gutentools
Vendor
CVE Published:
22 April 2026

What is CVE-2026-1395?

The Gutentools plugin for WordPress is vulnerable to a Stored Cross-Site Scripting attack through the Post Slider block's block_id attribute in all versions up to and including 1.1.3. This vulnerability arises from inadequate input sanitization and improper output escaping, compounded by a custom unescaping process that permits harmful characters to be reintroduced. As a result, authenticated users with Contributor-level access and above can exploit this flaw to insert arbitrary web scripts into pages, leading to script execution whenever a user visits the compromised page.

Affected Version(s)

Gutentools 0 <= 1.1.3

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/gutentools/tru...
https://plugins.trac.wordpress.org/browser/gutentools/tag...

CVSS V3.1

Score:
6.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Athiwat Tiprasaharn
Itthidej Aramsri
.