CVE-2026-27378

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreHIGH confidence

Score 5.3 from GitHub Security Advisory published 2026-09-11. A secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%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.

Unauthenticated Broken Access Control in Deposits and Partial Payments for WooCommerce <= 3.1.0 versions.

CVSS v3
5.3
EG Score
5.3MEDIUMhigh confidence
EG Risk
39
EG Risk 39/100CISA 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%
Exploitation0% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; 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
0.3%
EPSS %ILE
19th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; 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 (CISA Vulnrichment) · Automatable yes (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

September 11, 2026

Last Modified

September 11, 2026

Advisory Details (1)

Auto-updated Sep 11, 2026
No patch confirmed yet.

Vendor Advisories for CVE-2026-27378(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 15× in last 7d / 62× 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. 2026-10-04 23:21 UTCEPSS rescore
  2. 2026-10-04 17:27 UTCGHSA enrichment
  3. 2026-10-03 16:15 UTCEG score recompute
  4. 2026-10-03 16:15 UTCGHSA enrichment
  5. 2026-10-03 14:25 UTCEPSS rescore
  6. 2026-10-02 15:27 UTCEG score recompute
  7. 2026-10-02 15:27 UTCGHSA enrichment
  8. 2026-10-01 19:49 UTCEPSS rescore
  9. 2026-10-01 14:39 UTCEG score recompute
  10. 2026-10-01 14:39 UTCGHSA enrichment
  11. 2026-09-30 15:03 UTCEPSS rescore
  12. 2026-09-30 13:51 UTCEG score recompute
  13. 2026-09-30 13:51 UTCGHSA enrichment
  14. 2026-09-29 11:46 UTCEG score recompute
  15. 2026-09-29 11:46 UTCGHSA enrichment
  16. 2026-09-28 13:51 UTCEPSS rescore
  17. 2026-09-28 10:49 UTCEG score recompute
  18. 2026-09-28 10:49 UTCGHSA enrichment
  19. 2026-09-27 10:01 UTCEG score recompute
  20. 2026-09-27 10:01 UTCGHSA enrichment
  21. 2026-09-26 15:58 UTCEPSS rescore
  22. 2026-09-26 09:13 UTCEG score recompute
  23. 2026-09-26 09:13 UTCGHSA enrichment
  24. 2026-09-26 00:26 UTCEPSS rescore
  25. 2026-09-25 08:11 UTCEG score recompute
Show 37 more
  1. 2026-09-25 08:11 UTCGHSA enrichment
  2. 2026-09-24 07:22 UTCEG score recompute
  3. 2026-09-24 07:22 UTCGHSA enrichment
  4. 2026-09-23 06:33 UTCEG score recompute
  5. 2026-09-23 06:33 UTCGHSA enrichment
  6. 2026-09-22 05:44 UTCEG score recompute
  7. 2026-09-22 05:44 UTCGHSA enrichment
  8. 2026-09-21 04:56 UTCEG score recompute
  9. 2026-09-21 04:56 UTCGHSA enrichment
  10. 2026-09-20 20:15 UTCEPSS rescore
  11. 2026-09-20 20:15 UTCEPSS rescore
  12. 2026-09-20 03:55 UTCEG score recompute
  13. 2026-09-20 03:55 UTCGHSA enrichment
  14. 2026-09-19 03:06 UTCEG score recompute
  15. 2026-09-19 03:06 UTCGHSA enrichment
  16. 2026-09-18 19:28 UTCEPSS rescore
  17. 2026-09-18 19:27 UTCEPSS rescore
  18. 2026-09-18 02:17 UTCEG score recompute
  19. 2026-09-18 02:17 UTCGHSA enrichment
  20. 2026-09-17 19:30 UTCEPSS rescore
  21. 2026-09-17 01:29 UTCEG score recompute
  22. 2026-09-17 01:29 UTCGHSA enrichment
  23. 2026-09-16 14:08 UTCEPSS rescore
  24. 2026-09-16 05:15 UTCEPSS rescore
  25. 2026-09-16 00:40 UTCEG score recompute
  26. 2026-09-16 00:40 UTCGHSA enrichment
  27. 2026-09-14 23:45 UTCGHSA enrichment
  28. 2026-09-13 22:57 UTCEG score recompute
  29. 2026-09-13 22:57 UTCGHSA enrichment
  30. 2026-09-13 16:47 UTCEPSS rescore
  31. 2026-09-12 22:09 UTCEG score recompute
  32. 2026-09-12 22:09 UTCGHSA enrichment
  33. 2026-09-12 15:01 UTCEPSS rescore
  34. 2026-09-11 20:18 UTCEG score recompute
  35. 2026-09-11 19:35 UTCEG score recompute
  36. 2026-09-11 18:19 UTCEG score recompute
  37. 2026-09-11 18:18 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-27378?
CVE-2026-27378 is a medium vulnerability published on September 11, 2026. Unauthenticated Broken Access Control in Deposits and Partial Payments for WooCommerce <= 3.1.0 versions.
When was CVE-2026-27378 disclosed?
CVE-2026-27378 was first published on September 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-27378 actively exploited?
CVE-2026-27378 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (19th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-27378?
CVE-2026-27378 has a CVSS base score of 5.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-27378?
No fix for CVE-2026-27378 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. The vendor advisories EchelonGraph has for CVE-2026-27378 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-27378

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