Improper access control in Gutenberg Blocks – Ultimate Addons for Gutenberg - #VU26747
Published: April 9, 2020
Vulnerability identifier: #VU26747
CSH Severity: High
CVSS v4: 8.7 [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]
CVE-ID: N/A
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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
Affected software
Gutenberg Blocks – Ultimate Addons for Gutenberg
Remediation
Install updates from vendor's website.
Gutenberg Blocks – Ultimate Addons for Gutenberg - update to 1.14.8