It indicates a possible exploit of a SQL injection vulnerability in the search module in Edgewall Trac.
This flaw is due to an input validation error in the search module when processing specially crafted parameters, which may be exploited by malicious users to conduct SQL injection attacks.
Trac version 0.9.1 and prior.
The execution of arbitrary SQL commands on the system.
Upgrade to Trac version 0.9.2 :