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The application has no authentication mechanism and passes user-supplied HTTP parameters directly into deprecated <code>mysql_query()</code> calls via string concatenation, without sanitization, escaping, or parameterization. Affected sinks include <code>rooms.php</code> (<code>DELETE FROM Rooms WHERE ID = $_GET['ID']</code>, unquoted numeric context), <code>checkuser.php</code> (<code>WHERE Ext = '$_GET[\"Ext\"]'</code>), <code>ec.php</code> (date/extension parameters in a <code>WHERE</code>), <code>checkin.php</code> and <code>wakeup.php</code> (<code>$_POST</code> values into <code>INSERT</code> statements), <code>bills.php</code> (<code>$_POST</code> fields built into a <code>WHERE</code> clause), and <code>rates.php</code> and <code>checkout.php</code>. A remote, unauthenticated attacker can inject arbitrary SQL to read, modify, or delete arbitrary records in the backing database (e.g. <code>rooms.php?ID=1 OR 1=1</code> deletes all room records). 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The application has no authentication mechanism and passes user-supplied HTTP parameters directly into deprecated mysql_query() calls via string concatenation, without sanitization, escaping, or parameterization. Affected sinks include rooms.php (DELETE FROM Rooms WHERE ID = $_GET['ID'], unquoted numeric context), checkuser.php (WHERE Ext = '$_GET[\"Ext\"]'), ec.php (date/extension parameters in a WHERE), checkin.php and wakeup.php ($_POST values into INSERT statements), bills.php ($_POST fields built into a WHERE clause), and rates.php and checkout.php. A remote, unauthenticated attacker can inject arbitrary SQL to read, modify, or delete arbitrary records in the backing database (e.g. rooms.php?ID=1 OR 1=1 deletes all room records). Note: queries run via the legacy mysql_* extension, which does not permit stacked statements.","Type":"Description","Title":"PIAF-HMS multiple unauthenticated SQL injection vulnerabilities "}]}}}