SQL injection vulnerability in serendipity/serendipity_admin.php in Serendipity before 1.6.1 allows remote attackers to execute arbitrary SQL commands via the serendipity[plugin_to_conf] parameter. NOTE: this issue might be resultant from cross-site request forgery (CSRF).
The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.