| Package | Affected versions | Patched versions |
|---|---|---|
| wordpress | < 2.8.1 | 2.8.1 |
| wordpress mu | < 2.8.1 | 2.8.1 |
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."
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