CVE-2009-2335

CVE-2009-2335 is a medium-severity vulnerability in Wordpress with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 85% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-16.

Key facts

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."

Frequently asked questions

What is CVE-2009-2335?
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."
How severe is CVE-2009-2335?
CVE-2009-2335 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2009-2335 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 85% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-2335?
CVE-2009-2335 primarily affects Wordpress. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-2335?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-2335 published?
CVE-2009-2335 was published on 2009-07-10 and last updated on 2026-06-16.

References

Affected products (2)

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