WordPress and WordPress MU before 2.8.1 exhibit different behavior for
a failed login attempt depending on whether the user account exists,
which allows remote attackers to enumerate valid usernames. NOTE: the
vendor reportedly disputes the significance of this issue, indicating
that the behavior exists for "user convenience."
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
BUGTRAQ:20090708 CORE-2009-01515 - WordPress Privileges Unchecked in admin.php and Multiple Information
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