Description
The Greenshift – animation and page builder blocks plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the gspb_make_proxy_api_request() function in versions 11.4 to 11.4.5. This makes it possible for authenticated attackers, with Subscriber-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible. The arbitrary file upload was sufficiently patched in 11.4.5, but a capability check was added in 11.4.6 to properly prevent unauthorized limited file uploads.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected products
References
- MISChttps://www.wordfence.com/threat-intel/vulnerabilities/id/0db4671e-1989-44a4-babe-ed699c7f3a52?source=cve
- MISChttps://plugins.trac.wordpress.org/browser/greenshift-animation-and-page-builder-blocks/trunk/init.php#L3340
- MISChttps://plugins.trac.wordpress.org/changeset/3270279/greenshift-animation-and-page-builder-blocks/trunk/init.php
- MISChttps://plugins.trac.wordpress.org/changeset/3276168/greenshift-animation-and-page-builder-blocks/trunk/init.php
- MISChttps://plugins.trac.wordpress.org/changeset/3273212/greenshift-animation-and-page-builder-blocks/trunk/init.php