The Gutentor – Gutenberg Blocks – Page Builder for Gutenberg Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 3.5.5 due to insufficient input sanitization and output escaping. 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-2026-2951 is a medium severity with CVSS 5.4 Stored Cross-Site Scripting issue affecting the Plugin Gutentor – Gutenberg Blocks – Page Builder for Gutenberg Editor. It affects Versions up to 3.5.5 and is fixed in 3.5.6.
CVE-2026-2951 is tracked for the Plugin Gutentor – Gutenberg Blocks – Page Builder for Gutenberg Editor as medium severity with CVSS 5.4. The affected range is Versions up to 3.5.5. Update Gutentor – Gutenberg Blocks – Page Builder for Gutenberg Editor to 3.5.6 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
gutentor
View on wordpress.org
|
| CVE | CVE-2026-2951 |
| Patched Versions |
3.5.6
|
| Affected Versions |
Versions up to 3.5.5
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
Gutentor – Gutenberg Blocks – Page Builder for Gutenberg Editor <= 3.4.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via Multiple Widgets
Gutentor <= 3.4.3 - Authenticated (Contributor+) Stored Cross-Site Scripting
Gutentor – Gutenberg Blocks – Page Builder for Gutenberg Editor <= 3.3.9 - Authenticated (Contributor+) Stored Cross-Site Scripting via Countdown Widget
Gutentor - Gutenberg Blocks - Page Builder for Gutenberg Editor <= 3.3.5 - Authenticated (Contributor+) Stored Cross-Site Scripting
Gutentor <= 3.5.2 - Missing Authorization
Gutentor <= 3.4.6 - Authenticated (Administrator+) SQL Injection
Gutentor <= 3.5.5 - Missing Authorization
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