phpPgAdmin 7.13.0 and earlier contains an incorrect access control vulnerability in sql.php at lines 68-76. The application allows unauthorized manipulation of session variables by accepting user-controlled parameters (subject, server, database, queryid) without proper validation or access control checks. Attackers can exploit this to store arbitrary SQL queries in $_SESSION[sqlquery] by manipulating these parameters, potentially leading to session poisoning, stored cross-site scripting, or unauthorized access to sensitive session data.
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
Access control involves the use of several protection mechanisms such as:
When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses: