any where you see WDR4300 is not vulnerable?
according to http://sekurak.pl/tp-link-httptftp-backdoor/
WDR4300 is a popular dual band SOHO class router but it doesn't mean it is not vulnerable to this bug. Let's have a look.
History of the bug
12.02.2013 – TP-Link e-mailed with details – no response
22.02.2013 – TP-Link again e-mailed with details – no response
12.03.2013 – public disclosure
14.03.2013 – UPDATE: contact from TP-Link Poland. They asked for some more detailed information. Additional PoC sent.
15.03.2013 – UDPATE: confirmation of the issue (it is WAN exploitable if http admin is available from WAN side) Models affected