CVE-2026-39439

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory published 2026-10-02. A secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 6.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Missing Authorization vulnerability in Kiera Howe WebSamurai websamurai allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects WebSamurai: from n/a through 1.0.7.

CVSS v3
6.5
EG Score
6.5MEDIUMhigh 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
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
7th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). 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

October 2, 2026

Last Modified

October 2, 2026

Advisory Details (1)

Auto-updated Oct 2, 2026
Patch available.
generic Patch Available

Broken Access Control in WordPress WebSamurai Plugin - Patchstack

https://patchstack.com/database/wordpress/plugin/websamurai/vulnerability/wordpress-websamurai-plugin-1-0-7-broken-access-control-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-39439(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 11× 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. 2026-10-03 20:03 UTCEG score recompute
  2. 2026-10-03 20:03 UTCGHSA enrichment
  3. 2026-10-03 14:25 UTCEPSS rescore
  4. 2026-10-02 17:53 UTCGHSA enrichment
  5. 2026-10-02 16:28 UTCEG score recompute
  6. 2026-10-02 16:28 UTCGHSA enrichment
  7. 2026-10-02 15:46 UTCEG score recompute
  8. 2026-10-02 15:46 UTCGHSA enrichment
  9. 2026-10-02 15:26 UTCEG score recompute
  10. 2026-10-02 14:51 UTCEG score recompute
  11. 2026-10-02 14:50 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-39439?
CVE-2026-39439 is a medium vulnerability published on October 2, 2026. Missing Authorization vulnerability in Kiera Howe WebSamurai websamurai allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects WebSamurai: from n/a through 1.0.7.
When was CVE-2026-39439 disclosed?
CVE-2026-39439 was first published on October 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-39439 actively exploited?
CVE-2026-39439 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (7th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-39439?
CVE-2026-39439 has a CVSS base score of 6.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-39439?
A fix for CVE-2026-39439 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-39439 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-39439

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