CVE-2018-19586

CRITICALNVD 9.99.9—
EchelonGraph scoreMEDIUM confidence

Score 9.9 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-14. NVD baseline CVSS 9.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.9EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 5%CVSS: 9.9Exploit: None knownExposed: 0

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

Silverpeas 5.15 through 6.0.2 is affected by an authenticated Directory Traversal vulnerability that can be triggered during file uploads because core/webapi/upload/FileUploadData.java mishandles a StringUtil.java call. This vulnerability enables regular users to write arbitrary files on the underlying system with privileges of the user running the application. Especially, an attacker may leverage the vulnerability to write an executable JSP file in an exposed web directory to execute commands on the underlying system.

CVSS v3
9.9
EG Score
9.9(medium)
EG Risk
51(Track)
EG Risk 51/100SSVC: 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
Severity99% × 45%
Exploitation5% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
5%
EPSS %ILE
92%
KEV
Not listed

Published

April 9, 2019

Last Modified

November 21, 2024

Advisory Details (1)

Auto-updated Jul 24, 2026
No patch confirmed yet.
generic

Silverpeas-Core/core-web/src/main/java/org/silverpeas/core/webapi/upload/FileUploadData.java at d8c3bbb0695a4907db013401bd16c6527e2b4f41 · Silverpeas/Silverpeas-Core · GitHub

https://github.com/Silverpeas/Silverpeas-Core/blob/d8c3bbb0695a4907db013401bd16c6527e2b4f41/core-web/src/main/java/org/silverpeas/core/webapi/upload/FileUploadData.java#L89

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 42× 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 106 total refreshes for this CVE.

  1. 2026-07-26 14:51 UTCEPSS rescore
  2. 2026-07-26 14:51 UTCEPSS rescore
  3. 2026-07-25 14:14 UTCEPSS rescore
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  6. 2026-07-23 14:15 UTCEPSS rescore
  7. 2026-07-23 01:35 UTCEG score recompute
  8. 2026-07-22 22:15 UTCEG score recompute
  9. 2026-07-22 14:05 UTCEPSS rescore
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  11. 2026-07-20 18:02 UTCOSV refresh
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  1. 2026-07-11 08:24 UTCEPSS rescore
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  10. 2026-07-03 13:56 UTCOSV refresh
  11. 2026-07-02 16:54 UTCEPSS rescore
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  43. 2026-06-15 03:43 UTCOSV refresh
  44. 2026-06-14 23:15 UTCEPSS rescore
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  46. 2026-06-13 22:58 UTCEPSS rescore
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  49. 2026-06-11 13:57 UTCEPSS rescore
  50. 2026-06-10 22:16 UTCEPSS rescore
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  73. 2026-05-27 20:46 UTCEG score recompute
  74. 2026-05-27 20:46 UTCGHSA enrichment
  75. 2026-05-27 13:38 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2018-19586?
CVE-2018-19586 is a critical vulnerability published on April 9, 2019. Silverpeas 5.15 through 6.0.2 is affected by an authenticated Directory Traversal vulnerability that can be triggered during file uploads because core/webapi/upload/FileUploadData.java mishandles a StringUtil.java call. This vulnerability enables regular users to write arbitrary files on the…
When was CVE-2018-19586 disclosed?
CVE-2018-19586 was first published in the National Vulnerability Database on April 9, 2019, 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-2018-19586 actively exploited?
CVE-2018-19586 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 5% probability of exploitation in the next 30 days, which ranks it in the top 8.5% of all scored CVEs.
What is the CVSS score of CVE-2018-19586?
CVE-2018-19586 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2018-19586?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-19586, 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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