CVE-2009-0662

MEDIUMCVSS v2 · 6.06.0—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 6.0 — 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:M/Au:S/C:P/I:P/A:P. 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 1.0% 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
6.0EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS v2: 6.0Exploit: None knownExposed: 0

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

The PlonePAS product 3.x before 3.9 and 3.2.x before 3.2.2, a product for Plone, does not properly handle the login form, which allows remote authenticated users to acquire the identity of an arbitrary user via unspecified vectors.

CVSS v2.0 (legacy)
6.0MEDIUMNVD never assigned a CVSS v3 rating to this CVE
EG Score
6.0(low)
EG Risk
32(Track)
EG Risk 32/100SSVC: 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
Severity60% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
58%
KEV
Not listed

Published

April 23, 2009

Last Modified

April 23, 2026

References (10)

Vendor Advisories for CVE-2009-0662(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(2 across 1 ecosystem)
PyPI(2)
PackageVulnerable rangeFixed inDependents
plone3.2, 3.3——
products-plonepas3.0 ... 3.8 (10 versions)3.9—

Data Freshness Timeline

(refreshed 12× in last 7d / 34× 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. 2026-07-26 13:37 UTCEG score recompute▲ 6.00
  2. 2026-07-25 14:12 UTCEPSS rescore
  3. 2026-07-24 14:12 UTCEPSS rescore
  4. 2026-07-23 14:14 UTCEPSS rescore
  5. 2026-07-23 00:58 UTCEG score recompute
  6. 2026-07-23 00:36 UTCEG score recompute
  7. 2026-07-23 00:03 UTCEG score recompute
  8. 2026-07-22 21:42 UTCEG score recompute
  9. 2026-07-22 14:03 UTCEPSS rescore
  10. 2026-07-21 15:20 UTCEPSS rescore
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  1. 2026-07-06 02:19 UTCEPSS rescore
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  22. 2026-06-19 19:22 UTCEPSS rescore
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  24. 2026-06-18 17:49 UTCEPSS rescore
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  30. 2026-06-15 17:44 UTCEPSS rescore
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  36. 2026-06-10 22:14 UTCEPSS rescore
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  41. 2026-06-06 13:44 UTCEPSS rescore
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  44. 2026-06-05 22:44 UTCEPSS rescore
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  47. 2026-06-04 13:09 UTCEPSS rescore
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  49. 2026-06-02 20:10 UTCEPSS rescore
  50. 2026-06-02 20:10 UTCEPSS rescore
  51. 2026-05-31 22:28 UTCEPSS rescore
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  53. 2026-05-31 00:13 UTCEPSS rescore
  54. 2026-05-31 00:13 UTCEPSS rescore
  55. 2026-05-30 17:06 UTCEG score recompute
  56. 2026-05-29 13:40 UTCEPSS rescore
  57. 2026-05-28 13:42 UTCEPSS rescore
  58. 2026-05-28 13:42 UTCEPSS rescore
  59. 2026-05-28 13:42 UTCEPSS rescore
  60. 2026-05-27 13:38 UTCEPSS rescore
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  62. 2026-05-26 13:41 UTCEPSS rescore
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  69. 2026-05-20 22:37 UTCEPSS rescore
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  71. 2026-05-20 11:21 UTCEPSS rescore
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  73. 2026-05-18 21:29 UTCEPSS rescore

Frequently asked(4)

What is CVE-2009-0662?
CVE-2009-0662 is a medium vulnerability published on April 23, 2009. The PlonePAS product 3.x before 3.9 and 3.2.x before 3.2.2, a product for Plone, does not properly handle the login form, which allows remote authenticated users to acquire the identity of an arbitrary user via unspecified vectors.
When was CVE-2009-0662 disclosed?
CVE-2009-0662 was first published in the National Vulnerability Database on April 23, 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-2009-0662 actively exploited?
CVE-2009-0662 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 41.7% of all scored CVEs.
How do I remediate CVE-2009-0662?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2009-0662, 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.

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