CVE-2009-2335

NONECVSS 0.09.0▲
EchelonGraph scoreLOW confidence

Score elevated to 9.0 because EPSS predicts 85% probability of exploitation within the next 30 days (top 0.6% of all CVEs). Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss
Weaponized
0.0
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 85%
CISA-KEV: Not listedEPSS: 85%CVSS: —Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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."

CVSS v3
—
EG Score
9.0(low)
EPSS
99.7%
KEV
Not listed

Published

July 10, 2009

Last Modified

April 23, 2026

References (22)

Data Freshness Timeline

(refreshed 4× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-07 17:12 UTCOSV refresh
  2. 2026-07-05 02:26 UTCEPSS rescore
  3. 2026-07-05 02:26 UTCEPSS rescore
  4. 2026-07-01 15:02 UTCEPSS rescore
  5. 2026-06-28 04:52 UTCEPSS rescore
  6. 2026-06-28 04:52 UTCEPSS rescore
  7. 2026-06-25 13:46 UTCEPSS rescore
  8. 2026-06-25 13:46 UTCEPSS rescore
  9. 2026-06-23 21:29 UTCEPSS rescore
  10. 2026-06-23 21:29 UTCEPSS rescore
  11. 2026-06-19 04:43 UTCOSV refresh
  12. 2026-06-17 17:49 UTCEPSS rescore
  13. 2026-06-17 17:49 UTCEPSS rescore
  14. 2026-06-15 17:44 UTCEPSS rescore
  15. 2026-06-13 22:57 UTCEPSS rescore
  16. 2026-06-12 23:08 UTCEPSS rescore
  17. 2026-06-12 23:08 UTCEPSS rescore
  18. 2026-06-10 22:14 UTCEPSS rescore
  19. 2026-06-10 13:17 UTCEPSS rescore
  20. 2026-06-08 14:13 UTCEPSS rescore
  21. 2026-06-06 13:44 UTCEPSS rescore
  22. 2026-06-06 13:44 UTCEPSS rescore
  23. 2026-06-06 13:44 UTCEPSS rescore
  24. 2026-06-05 22:44 UTCEPSS rescore
  25. 2026-06-05 22:44 UTCEPSS rescore
Show 15 more
  1. 2026-05-31 22:28 UTCEPSS rescore
  2. 2026-05-31 22:28 UTCEPSS rescore
  3. 2026-05-30 16:12 UTCEG score recompute
  4. 2026-05-30 16:12 UTCGHSA enrichment
  5. 2026-05-28 13:42 UTCEPSS rescore
  6. 2026-05-28 13:42 UTCEPSS rescore
  7. 2026-05-28 13:42 UTCEPSS rescore
  8. 2026-05-26 13:41 UTCEPSS rescore
  9. 2026-05-26 13:41 UTCEPSS rescore
  10. 2026-05-22 21:15 UTCEPSS rescore
  11. 2026-05-22 21:15 UTCEPSS rescore
  12. 2026-05-20 22:37 UTCEPSS rescore
  13. 2026-05-20 22:37 UTCEPSS rescore
  14. 2026-05-20 11:29 UTCOSV refresh
  15. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(2 references)

Working exploit code is in the public domain (1 Metasploit module) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-17702
    First seen Aug 20, 2011

    WordPress Plugin Block-Spam-By-Math-Reloaded - Bypass

    Open source ↗
  • Metasploitauxiliary/scanner/http/wordpress_login_enum✓ verified
    First seen Jan 1, 2009

    WordPress Brute Force and User Enumeration Utility

    Open source ↗

Frequently asked(4)

What is CVE-2009-2335?
CVE-2009-2335 is a none vulnerability published on July 10, 2009. 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…
When was CVE-2009-2335 disclosed?
CVE-2009-2335 was first published in the National Vulnerability Database on July 10, 2009, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2009-2335 actively exploited?
CVE-2009-2335 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2009-2335?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2009-2335, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2009-2335

Explore →

Is Your Infrastructure Affected by CVE-2009-2335?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs