CVE-2018-16959

MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2022-05-14. NVD baseline CVSS 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1.2%CVSS: 5.3Exploit: None knownExposed services: Not assessed

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

An issue was discovered in Oracle WebCenter Interaction Portal 10.3.3. The portal component is delivered with an insecure default User Profile community configuration that allows anonymous users to retrieve the account names of all portal users via /portal/server.pt/user/user/ requests. When WCI is synchronised with Active Directory (AD), this vulnerability can expose the account names of all AD users. NOTE: this CVE is assigned by MITRE and isn't validated by Oracle because Oracle WebCenter Interaction Portal is out of support.

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100CISA SSVC

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
Severity53% × 45%
Exploitation1% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
1.2%
EPSS %ILE
68th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 18, 2018

Last Modified

November 21, 2024

References (4)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 5× in last 7d / 26× 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.

Showing the most recent 100 of 156 total refreshes for this CVE.

  1. 2026-10-05 17:39 UTCEPSS rescore
  2. 2026-10-04 23:18 UTCEPSS rescore
  3. 2026-10-03 14:21 UTCEPSS rescore
  4. 2026-09-30 14:59 UTCEPSS rescore
  5. 2026-09-30 09:55 UTCEG score recompute
  6. 2026-09-28 13:45 UTCEPSS rescore
  7. 2026-09-27 13:40 UTCEPSS rescore
  8. 2026-09-27 13:40 UTCEPSS rescore
  9. 2026-09-26 15:53 UTCEPSS rescore
  10. 2026-09-26 00:19 UTCEPSS rescore
  11. 2026-09-24 13:59 UTCEPSS rescore
  12. 2026-09-23 13:42 UTCEPSS rescore
  13. 2026-09-21 20:27 UTCEPSS rescore
  14. 2026-09-20 20:10 UTCEPSS rescore
  15. 2026-09-19 15:36 UTCEPSS rescore
  16. 2026-09-18 19:22 UTCEPSS rescore
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  18. 2026-09-16 14:03 UTCEPSS rescore
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  20. 2026-09-15 03:05 UTCEPSS rescore
  21. 2026-09-13 16:42 UTCEPSS rescore
  22. 2026-09-12 14:56 UTCEPSS rescore
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  24. 2026-09-10 09:27 UTCEPSS rescore
  25. 2026-09-07 15:57 UTCEPSS rescore
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  1. 2026-09-06 13:43 UTCEPSS rescore
  2. 2026-09-05 15:24 UTCEPSS rescore
  3. 2026-09-04 13:56 UTCEPSS rescore
  4. 2026-09-04 05:02 UTCEPSS rescore
  5. 2026-09-02 14:07 UTCEPSS rescore
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  7. 2026-09-01 13:49 UTCEPSS rescore
  8. 2026-09-01 03:31 UTCEPSS rescore
  9. 2026-08-30 19:13 UTCEPSS rescore
  10. 2026-08-28 21:36 UTCEPSS rescore
  11. 2026-08-27 14:21 UTCEPSS rescore
  12. 2026-08-26 14:41 UTCEPSS rescore
  13. 2026-08-25 13:44 UTCEPSS rescore
  14. 2026-08-23 00:14 UTCEPSS rescore
  15. 2026-08-21 23:44 UTCEPSS rescore
  16. 2026-08-20 22:51 UTCEPSS rescore
  17. 2026-08-19 17:00 UTCEPSS rescore
  18. 2026-08-18 13:43 UTCEPSS rescore
  19. 2026-08-16 14:51 UTCEPSS rescore
  20. 2026-08-16 02:10 UTCEPSS rescore
  21. 2026-08-15 01:26 UTCEPSS rescore
  22. 2026-08-13 21:56 UTCEPSS rescore
  23. 2026-08-12 13:46 UTCEPSS rescore
  24. 2026-08-11 13:36 UTCEPSS rescore
  25. 2026-08-09 13:42 UTCEPSS rescore
  26. 2026-08-08 16:32 UTCEPSS rescore
  27. 2026-08-07 16:22 UTCEPSS rescore
  28. 2026-08-06 13:42 UTCEPSS rescore
  29. 2026-08-06 13:42 UTCEPSS rescore
  30. 2026-08-04 15:05 UTCEPSS rescore
  31. 2026-08-02 02:23 UTCEPSS rescore
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  35. 2026-07-28 15:32 UTCEPSS rescore
  36. 2026-07-26 14:51 UTCEPSS rescore
  37. 2026-07-26 14:51 UTCEPSS rescore
  38. 2026-07-24 14:14 UTCEPSS rescore
  39. 2026-07-23 14:15 UTCEPSS rescore
  40. 2026-07-23 14:15 UTCEPSS rescore
  41. 2026-07-23 01:34 UTCEG score recompute
  42. 2026-07-22 22:14 UTCEG score recompute
  43. 2026-07-22 14:04 UTCEPSS rescore
  44. 2026-07-21 15:21 UTCEPSS rescore
  45. 2026-07-20 17:04 UTCEPSS rescore
  46. 2026-07-20 17:04 UTCEPSS rescore
  47. 2026-07-19 02:26 UTCEPSS rescore
  48. 2026-07-19 02:26 UTCEPSS rescore
  49. 2026-07-16 16:59 UTCEPSS rescore
  50. 2026-07-16 16:59 UTCEPSS rescore
  51. 2026-07-15 16:55 UTCEPSS rescore
  52. 2026-07-15 01:56 UTCEPSS rescore
  53. 2026-07-13 22:26 UTCEPSS rescore
  54. 2026-07-13 06:10 UTCEPSS rescore
  55. 2026-07-12 05:43 UTCEPSS rescore
  56. 2026-07-11 08:24 UTCEPSS rescore
  57. 2026-07-09 19:06 UTCEPSS rescore
  58. 2026-07-08 15:11 UTCEPSS rescore
  59. 2026-07-07 13:42 UTCEPSS rescore
  60. 2026-07-07 13:42 UTCEPSS rescore
  61. 2026-07-06 16:24 UTCEPSS rescore
  62. 2026-07-06 16:24 UTCEPSS rescore
  63. 2026-07-06 02:20 UTCEPSS rescore
  64. 2026-07-05 02:27 UTCEPSS rescore
  65. 2026-07-04 06:28 UTCEPSS rescore
  66. 2026-07-02 16:54 UTCEPSS rescore
  67. 2026-07-01 15:03 UTCEPSS rescore
  68. 2026-07-01 15:03 UTCEPSS rescore
  69. 2026-06-30 23:19 UTCEPSS rescore
  70. 2026-06-30 23:19 UTCEPSS rescore
  71. 2026-06-29 14:03 UTCEPSS rescore
  72. 2026-06-28 14:04 UTCEPSS rescore
  73. 2026-06-28 04:53 UTCEPSS rescore
  74. 2026-06-28 04:53 UTCEPSS rescore
  75. 2026-06-27 03:06 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2018-16959?
CVE-2018-16959 is a medium vulnerability published on September 18, 2018. An issue was discovered in Oracle WebCenter Interaction Portal 10.3.3. The portal component is delivered with an insecure default User Profile community configuration that allows anonymous users to retrieve the account names of all portal users via /portal/server.pt/user/user/ requests. When WCI is…
When was CVE-2018-16959 disclosed?
CVE-2018-16959 was first published on September 18, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-16959 actively exploited?
CVE-2018-16959 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.2% probability of exploitation in the next 30 days (68th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2018-16959?
CVE-2018-16959 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2018-16959?
No fix for CVE-2018-16959 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix.

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