CVE-2009-2335

MEDIUMCVSS v2 · 5.05.0—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 5.0 — v2 rates that MEDIUM (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:L/Au:N/C:P/I:N/A:N. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 85.0% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.

Sources: epss, nvd_v2
Weaponized
5.0EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 85%
  • Public exploit code is available (Metasploit, epss top5pct, epss high, public exploit)
CISA-KEV: Not listedEPSS PROB: 85%CVSS v2: 5.0Exploit: Metasploit · epss top5pct · epss high · public exploitExposed: 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 v2.0 (legacy)
5.0MEDIUMNVD never assigned a CVSS v3 rating to this CVE
EG Score
5.0(low)
EG Risk
61(Track)
EG Risk 61/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity50% × 45%
Exploitation85% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
85%
EPSS %ILE
100%
KEV
Not listed

Published

July 10, 2009

Last Modified

April 23, 2026

References (22)

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
wordpress—2.8.3-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
wordpress—2.8.3-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
wordpress—2.8.3-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
wordpress—2.8.3-1—

Data Freshness Timeline

(refreshed 3× in last 7d / 6× 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. 2026-08-27 14:19 UTCEPSS rescore
  2. 2026-08-25 13:43 UTCEPSS rescore
  3. 2026-08-24 11:42 UTCOSV refresh
  4. 2026-08-19 16:58 UTCEPSS rescore
  5. 2026-08-08 07:49 UTCOSV refresh
  6. 2026-07-30 16:22 UTCEPSS rescore
  7. 2026-07-26 13:38 UTCEG score recompute▲ 5.00
  8. 2026-07-24 14:12 UTCEPSS rescore
  9. 2026-07-23 01:06 UTCGHSA enrichment
  10. 2026-07-23 01:05 UTCGHSA enrichment
  11. 2026-07-23 01:04 UTCGHSA enrichment
  12. 2026-07-23 01:03 UTCGHSA enrichment
  13. 2026-07-23 01:02 UTCGHSA enrichment
  14. 2026-07-23 01:02 UTCGHSA enrichment
  15. 2026-07-23 01:01 UTCGHSA enrichment
  16. 2026-07-23 00:59 UTCGHSA enrichment
  17. 2026-07-23 00:58 UTCGHSA enrichment
  18. 2026-07-23 00:57 UTCGHSA enrichment
  19. 2026-07-23 00:56 UTCGHSA enrichment
  20. 2026-07-23 00:55 UTCGHSA enrichment
  21. 2026-07-23 00:54 UTCGHSA enrichment
  22. 2026-07-23 00:53 UTCGHSA enrichment
  23. 2026-07-23 00:52 UTCGHSA enrichment
  24. 2026-07-23 00:51 UTCGHSA enrichment
  25. 2026-07-23 00:50 UTCGHSA enrichment
Show 62 more
  1. 2026-07-23 00:49 UTCGHSA enrichment
  2. 2026-07-23 00:48 UTCGHSA enrichment
  3. 2026-07-23 00:47 UTCGHSA enrichment
  4. 2026-07-23 00:46 UTCGHSA enrichment
  5. 2026-07-23 00:44 UTCGHSA enrichment
  6. 2026-07-23 00:43 UTCGHSA enrichment
  7. 2026-07-23 00:43 UTCGHSA enrichment
  8. 2026-07-23 00:42 UTCEG score recompute
  9. 2026-07-23 00:42 UTCGHSA enrichment
  10. 2026-07-23 00:40 UTCGHSA enrichment
  11. 2026-07-23 00:37 UTCGHSA enrichment
  12. 2026-07-23 00:37 UTCEG score recompute▼ 9.00
  13. 2026-07-23 00:04 UTCEG score recompute
  14. 2026-07-22 21:43 UTCEG score recompute
  15. 2026-07-22 14:03 UTCEPSS rescore
  16. 2026-07-20 17:03 UTCEPSS rescore
  17. 2026-07-20 17:03 UTCEPSS rescore
  18. 2026-07-18 09:59 UTCEPSS rescore
  19. 2026-07-15 16:54 UTCEPSS rescore
  20. 2026-07-15 16:54 UTCEPSS rescore
  21. 2026-07-13 06:07 UTCEPSS rescore
  22. 2026-07-09 19:04 UTCEPSS rescore
  23. 2026-07-07 17:12 UTCOSV refresh
  24. 2026-07-05 02:26 UTCEPSS rescore
  25. 2026-07-05 02:26 UTCEPSS rescore
  26. 2026-07-01 15:02 UTCEPSS rescore
  27. 2026-06-28 04:52 UTCEPSS rescore
  28. 2026-06-28 04:52 UTCEPSS rescore
  29. 2026-06-25 13:46 UTCEPSS rescore
  30. 2026-06-25 13:46 UTCEPSS rescore
  31. 2026-06-23 21:29 UTCEPSS rescore
  32. 2026-06-23 21:29 UTCEPSS rescore
  33. 2026-06-19 04:43 UTCOSV refresh
  34. 2026-06-17 17:49 UTCEPSS rescore
  35. 2026-06-17 17:49 UTCEPSS rescore
  36. 2026-06-15 17:44 UTCEPSS rescore
  37. 2026-06-13 22:57 UTCEPSS rescore
  38. 2026-06-12 23:08 UTCEPSS rescore
  39. 2026-06-12 23:08 UTCEPSS rescore
  40. 2026-06-10 22:14 UTCEPSS rescore
  41. 2026-06-10 13:17 UTCEPSS rescore
  42. 2026-06-08 14:13 UTCEPSS rescore
  43. 2026-06-06 13:44 UTCEPSS rescore
  44. 2026-06-06 13:44 UTCEPSS rescore
  45. 2026-06-06 13:44 UTCEPSS rescore
  46. 2026-06-05 22:44 UTCEPSS rescore
  47. 2026-06-05 22:44 UTCEPSS rescore
  48. 2026-05-31 22:28 UTCEPSS rescore
  49. 2026-05-31 22:28 UTCEPSS rescore
  50. 2026-05-30 16:12 UTCEG score recompute
  51. 2026-05-30 16:12 UTCGHSA enrichment
  52. 2026-05-28 13:42 UTCEPSS rescore
  53. 2026-05-28 13:42 UTCEPSS rescore
  54. 2026-05-28 13:42 UTCEPSS rescore
  55. 2026-05-26 13:41 UTCEPSS rescore
  56. 2026-05-26 13:41 UTCEPSS rescore
  57. 2026-05-22 21:15 UTCEPSS rescore
  58. 2026-05-22 21:15 UTCEPSS rescore
  59. 2026-05-20 22:37 UTCEPSS rescore
  60. 2026-05-20 22:37 UTCEPSS rescore
  61. 2026-05-20 11:29 UTCOSV refresh
  62. 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 medium 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 85% probability of exploitation in the next 30 days, which ranks it in the top 0.3% of all scored CVEs.
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

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