#VU26747 Improper access control in Gutenberg Blocks – Ultimate Addons for Gutenberg

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Main Vulnerability Database Vulnerabilities #VU26747

#VU26747 Improper access control in Gutenberg Blocks – Ultimate Addons for Gutenberg

Published: April 9, 2020


Vulnerability identifier: #VU26747
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: N/A
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Gutenberg Blocks – Ultimate Addons for Gutenberg
Software vendor:
Brainstorm Force, Nikhil Chavan

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions in several AJAX actions in the "ultimate-addons-for-gutenberg/classes/class-uagb-admin.php" script. A remote authenticated attacker can send a $_POST['page'] = 'uag' to the current page and interact with all six AJAX actions, leading to settings change.

This vulnerability affects the following AJAX actions:

  • uagb_activate_widget
  • uagb_deactivate_widget
  • uagb_bulk_activate_widgets
  • uagb_bulk_deactivate_widgets
  • uagb_allow_beta_updates
  • uagb_file_generation


Remediation

Install updates from vendor's website.

External links