CVE-2026-81427

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory published 2026-09-02. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: None knownExposed: 0

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

The WC Vendors WordPress plugin before 2.7.2.1 does not verify that the vendor submitting a front-end order shipment status change owns the referenced order, allowing any authenticated vendor to mark another vendor's order as shipped, add an order note falsely attributed to the victim vendor, and trigger the customer shipment notification email.

CVSS v3
4.3
EG Score
4.3(high)
EG Risk
19(Track)
EG Risk 19/100SSVC: 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
Severity43% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
15%
KEV
Not listed

Published

September 2, 2026

Last Modified

September 3, 2026

Advisory Details (1)

Auto-updated Sep 2, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

WC Vendors < 2.7.2.1 – Vendor+ Cross-Vendor Order Shipment Status Change | CVE 2026-81427 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/f7fcf650-6e5e-4629-97ac-a76a5a0551db/

Vendor Advisories for CVE-2026-81427(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 21× in last 7d / 71× 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. 2026-09-24 18:31 UTCEG score recompute
  2. 2026-09-24 18:31 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-23 20:25 UTCEG score recompute
  5. 2026-09-23 20:25 UTCGHSA enrichment
  6. 2026-09-23 17:54 UTCEPSS rescore
  7. 2026-09-22 22:31 UTCEG score recompute
  8. 2026-09-22 22:31 UTCGHSA enrichment
  9. 2026-09-22 16:01 UTCEPSS rescore
  10. 2026-09-22 00:34 UTCEG score recompute
  11. 2026-09-22 00:34 UTCGHSA enrichment
  12. 2026-09-21 21:09 UTCEPSS rescore
  13. 2026-09-21 02:40 UTCEG score recompute
  14. 2026-09-21 02:40 UTCGHSA enrichment
  15. 2026-09-20 20:16 UTCEPSS rescore
  16. 2026-09-20 04:46 UTCEG score recompute
  17. 2026-09-20 04:46 UTCGHSA enrichment
  18. 2026-09-20 04:45 UTCGHSA enrichment
  19. 2026-09-19 06:51 UTCEG score recompute
  20. 2026-09-19 06:51 UTCGHSA enrichment
  21. 2026-09-18 19:28 UTCEPSS rescore
  22. 2026-09-18 08:49 UTCEG score recompute
  23. 2026-09-18 08:49 UTCGHSA enrichment
  24. 2026-09-17 10:54 UTCEG score recompute
  25. 2026-09-17 10:54 UTCGHSA enrichment
Show 46 more
  1. 2026-09-16 14:08 UTCEPSS rescore
  2. 2026-09-16 13:00 UTCEG score recompute
  3. 2026-09-16 13:00 UTCGHSA enrichment
  4. 2026-09-16 05:15 UTCEPSS rescore
  5. 2026-09-15 15:05 UTCEG score recompute
  6. 2026-09-15 15:05 UTCGHSA enrichment
  7. 2026-09-15 03:12 UTCEPSS rescore
  8. 2026-09-15 03:12 UTCEPSS rescore
  9. 2026-09-14 17:04 UTCGHSA enrichment
  10. 2026-09-13 19:10 UTCEG score recompute
  11. 2026-09-13 19:10 UTCGHSA enrichment
  12. 2026-09-12 21:16 UTCEG score recompute
  13. 2026-09-12 21:16 UTCGHSA enrichment
  14. 2026-09-11 23:21 UTCEG score recompute
  15. 2026-09-11 23:21 UTCGHSA enrichment
  16. 2026-09-11 14:53 UTCEPSS rescore
  17. 2026-09-11 14:53 UTCEPSS rescore
  18. 2026-09-11 01:26 UTCEG score recompute
  19. 2026-09-11 01:26 UTCGHSA enrichment
  20. 2026-09-10 03:31 UTCGHSA enrichment
  21. 2026-09-09 05:37 UTCEG score recompute
  22. 2026-09-09 05:37 UTCGHSA enrichment
  23. 2026-09-08 22:01 UTCEPSS rescore
  24. 2026-09-08 07:42 UTCEG score recompute
  25. 2026-09-08 07:42 UTCGHSA enrichment
  26. 2026-09-07 09:48 UTCEG score recompute
  27. 2026-09-07 09:48 UTCGHSA enrichment
  28. 2026-09-06 13:48 UTCEPSS rescore
  29. 2026-09-06 11:52 UTCEG score recompute
  30. 2026-09-06 11:52 UTCGHSA enrichment
  31. 2026-09-05 15:31 UTCEPSS rescore
  32. 2026-09-05 13:57 UTCGHSA enrichment
  33. 2026-09-04 16:00 UTCEG score recompute
  34. 2026-09-04 16:00 UTCGHSA enrichment
  35. 2026-09-04 05:07 UTCEPSS rescore
  36. 2026-09-03 18:04 UTCGHSA enrichment
  37. 2026-09-03 09:20 UTCEG score recompute
  38. 2026-09-03 09:20 UTCGHSA enrichment
  39. 2026-09-02 14:12 UTCEPSS rescore
  40. 2026-09-02 11:25 UTCGHSA enrichment
  41. 2026-09-02 10:51 UTCEG score recompute▲ 4.30
  42. 2026-09-02 10:50 UTCGHSA enrichment
  43. 2026-09-02 10:48 UTCMITRE cvelistV5CVSS v3 → 4.3 · severity → MEDIUM
  44. 2026-09-02 06:26 UTCNVD update
  45. 2026-09-02 06:06 UTCEG score recompute
  46. 2026-09-02 06:05 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-81427?
CVE-2026-81427 is a medium vulnerability published on September 2, 2026. The WC Vendors WordPress plugin before 2.7.2.1 does not verify that the vendor submitting a front-end order shipment status change owns the referenced order, allowing any authenticated vendor to mark another vendor's order as shipped, add an order note falsely attributed to the victim vendor, and…
When was CVE-2026-81427 disclosed?
CVE-2026-81427 was first published in the National Vulnerability Database on September 2, 2026, with the most recent update on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-81427 actively exploited?
CVE-2026-81427 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 84.9% of all scored CVEs.
What is the CVSS score of CVE-2026-81427?
CVE-2026-81427 has a CVSS v3.1 base score of 4.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-81427?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-81427, 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.

Dependency Blast Radius

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