CVE-2021-38346 Information
Jun 07, 2022
cve
Description
The Brizy Page Builder plugin <= 2.3.11 for WordPress allowed authenticated users to upload executable files to a location of their choice using the brizy_create_block_screenshot AJAX action. The file would be named using the id parameter which could be prepended with ../\ to perform directory traversal and the file contents were populated via the ibsf parameter which would be base64-decoded and written to the file. While the plugin added a .jpg extension to all uploaded filenames a double extension attack was still possible e.g. a file named shell.php would be saved as shell.php.jpg and would be executable on a number of common configurations.
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Reference
Attack Complexity
LOW
Privileges Required
LOW
User Interaction Required
LOW
Scope
NONE
Confidentiality Impact
UNCHANGED
Integrity Impact
HIGH
Availability Impact
HIGH
Base Score
HIGH
Base Severity
8.8
Share on: