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Date: Fri, 19 Dec 2014 11:45:48 +0800
From: Jing Wang <>
Subject: [FD] Yahoo Open Redirect Security

*Yahoo <> Open Redirect Security

Though Yahoo lists open redirect vulnerability on its bug bounty program.
However, it seems Yahoo do not take this vulnerability seriously at all.

Multiple Open Redirect vulnerabilities were reported Yahoo. All Yahoo's
responses were "this intended behavior". However, these vulnerabilities
were patched later.

Several other security researcher complained about getting similar
treatment, too.

All Open Redirect Vulnerabilities are intended behavior? If so, why patch
them later?

The vulnerability can be attacked without user login. Tests were performed
on Firefox (33.0) in Ubuntu (14.04) and IE (10.0.9200.16521 ) in Windows 8.

*(1) Open Redirect*

*Vulnerable URLs:****

*Poc Video:*

*Another Video Published Before:*


*(2) <> Open Redirect*

Use one of webpages for the following tests. The webpage address is "". Suppose that this webpage is malicious.

*Vulnerable URL:*


*Poc Video:*


Reported by:
Wang Jing, School of Physical and Mathematical Sciences, Nanyang
Technological University, Singapore

*Blog Details:*

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