Medium severity6.4NVD Advisory· Published Apr 22, 2026· Updated Apr 22, 2026
CVE-2026-1395
CVE-2026-1395
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1Patches
Vulnerability mechanics
References
5- plugins.trac.wordpress.org/browser/gutentools/tags/1.1.3/core/blocks/post-slider.phpnvd
- plugins.trac.wordpress.org/browser/gutentools/trunk/core/blocks/post-slider.phpnvd
- plugins.trac.wordpress.org/browser/gutentools/trunk/core/gutentools_block.phpnvd
- plugins.trac.wordpress.org/changeset/3476597/gutentools/trunk/core/blocks/post-slider.phpnvd
- www.wordfence.com/threat-intel/vulnerabilities/id/b2683b4e-b993-4c84-b7cc-a2cb511b4097nvd
News mentions
1- Wordfence Intelligence Weekly WordPress Vulnerability Report (April 20, 2026 to April 26, 2026)Wordfence Blog · Apr 30, 2026