This indicates an attack attempt to exploit an Information Disclosure Vulnerability in D-Link DIR-130 firmware and DIR-330 firmware.
The vulnerability is due to improper authentication in the application. A remote attacker can exploit this to access sensitive information, such as admin credentials, on the affected devices.
D-Link DIR-130 firmware version 1.23 and earlier
DIR-330 firmware version 1.12 and earlier
Information Disclosure: Remote attackers can gain sensitive information from vulnerable systems
Currently, we are unaware of any vendor supplied patch for this issue.