CVE-2026-9227
HIGH
8,8
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Description
AI Translation Available
The GutenBee – Gutenberg Blocks plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 2.20.1 via the gutenbee_file_and_ext_json function. This is due to a flawed strpos() substring check that only verifies whether the filename contains the string '.json' rather than confirming the filename ends with a .json extension, allowing double-extension filenames like shell.json.php to bypass validation. This makes it possible for authenticated attackers, with author-level access and above, to upload files that may be executable, which makes remote code execution possible.
434
Unrestricted Upload of File with Dangerous Type
DraftCommon Consequences
Security Scopes Affected:
Integrity
Confidentiality
Availability
Potential Impacts:
Execute Unauthorized Code Or Commands
Applicable Platforms
Languages:
ASP.NET, PHP, Not Language-Specific
Technologies:
Web Server, AI/ML
https://github.com/cssigniter/gutenbee/commit/bde934cdecf67a4de1d6548cc1fc6c59b…
https://plugins.trac.wordpress.org/browser/gutenbee/tags/2.20.0/gutenbee.php#L5…
https://plugins.trac.wordpress.org/browser/gutenbee/tags/2.20.0/gutenbee.php#L5…
https://plugins.trac.wordpress.org/browser/gutenbee/tags/2.20.0/gutenbee.php#L5…
https://plugins.trac.wordpress.org/browser/gutenbee/tags/2.20.1/gutenbee.php#L5…
https://plugins.trac.wordpress.org/browser/gutenbee/tags/2.20.1/gutenbee.php#L5…
https://plugins.trac.wordpress.org/browser/gutenbee/tags/2.20.1/gutenbee.php#L5…
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&ol…
https://www.wordfence.com/threat-intel/vulnerabilities/id/2d20e8c9-975d-4e8c-8b…