Is CVE-2009-2335 in the CISA KEV catalog?

No. CVE-2009-2335 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2009-2335?

CVE-2009-2335 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2009-2335?

CVE-2009-2335 has an EPSS score of 85.00% (100th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2009-2335

MEDIUMEPSS 100th pctl

5.0

CVSS v2

NVD

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."

CWE-16

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

85.00%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-23.