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WordPress Core & WordPress MU < 2.8.1 - Username Enumeration

Wordfence Intelligence > Vulnerability Database > WordPress Core & WordPress MU < 2.8.1 - Username Enumeration

5.3

Observable Response Discrepancy

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVE	CVE-2009-2335
CVSS	5.3 (Medium)
Publicly Published	July 9, 2009
Last Updated	December 5, 2022

Description

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."

References

2 affected software packages

WordPress

Software Type	Core
Patched?	Yes
Remediation	Update to version 2.8.1, or a newer patched version
Affected Version	<= 2.8
Patched Version	2.8.1

WordPress MU

Software Type	Core
Patched?	Yes
Remediation	Update to version 2.8.1, or a newer patched version
Affected Version	<= 2.8
Patched Version	2.8.1

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