CVE-2009-2335

no score yetEPSS 85%

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."

EPSS: 85% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)
CWE: CWE-16
Published: 2009-07-10
Modified: 2026-06-16
Record from: the NVD, synced 2026-10-19

Affected

wordpress:wordpress
wordpress:wordpress_mu

References

http://corelabs.coresecurity.com/index.php?action=view&type=advisory&name=WordPress_Privileges_Unchecked
http://securitytracker.com/id?1022528
http://www.exploit-db.com/exploits/9110
http://www.osvdb.org/55713
http://www.securityfocus.com/archive/1/504795/100/0/threaded

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