CVE-2026-81431

HIGHPre-NVD 7.27.2—
EchelonGraph scoreHIGH confidence

Score 7.2 from GitHub Security Advisory (severity: HIGH) published 2026-09-10. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
7.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.2Exploit: None knownExposed: 0

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

The Registration Form for WooCommerce WordPress plugin before 1.1.3 does not validate that the form referenced during registration is a legitimate registration form, reading the permitted-role allow-list from an arbitrary attacker-controlled post instead. A user able to create a post (Contributor and above) can therefore register a new account with an arbitrary role, including Administrator, leading to full site takeover. This is an incomplete fix of CVE-2026-54807.

CVSS v3
7.2
EG Score
7.2(high)
EG Risk
33(Track)
EG Risk 33/100SSVC: 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
Severity72% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
37%
KEV
Not listed

Published

September 10, 2026

Last Modified

September 10, 2026

Advisory Details (1)

Auto-updated Sep 10, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Registration Form for WooCommerce 1.1.0 – 1.1.2 – Contributor+ Privilege Escalation via Unvalidated tgwcfb_id | CVE 2026-81431 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/e1255dd5-90d9-4ccf-9f84-3d1b41c5cba4/

Vendor Advisories for CVE-2026-81431(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 28× in last 7d / 67× 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. 2026-09-25 09:40 UTCGHSA enrichment
  2. 2026-09-24 22:19 UTCEG score recompute
  3. 2026-09-24 22:19 UTCGHSA enrichment
  4. 2026-09-24 14:04 UTCEPSS rescore
  5. 2026-09-24 11:00 UTCGHSA enrichment
  6. 2026-09-23 23:40 UTCEG score recompute
  7. 2026-09-23 23:40 UTCGHSA enrichment
  8. 2026-09-23 17:54 UTCEPSS rescore
  9. 2026-09-23 12:21 UTCGHSA enrichment
  10. 2026-09-23 01:01 UTCEG score recompute
  11. 2026-09-23 01:01 UTCGHSA enrichment
  12. 2026-09-22 16:01 UTCEPSS rescore
  13. 2026-09-22 13:41 UTCGHSA enrichment
  14. 2026-09-22 02:21 UTCEG score recompute
  15. 2026-09-22 02:21 UTCGHSA enrichment
  16. 2026-09-21 21:09 UTCEPSS rescore
  17. 2026-09-21 15:01 UTCGHSA enrichment
  18. 2026-09-21 03:25 UTCEG score recompute
  19. 2026-09-21 03:25 UTCGHSA enrichment
  20. 2026-09-20 20:16 UTCEPSS rescore
  21. 2026-09-20 16:05 UTCGHSA enrichment
  22. 2026-09-20 04:41 UTCGHSA enrichment
  23. 2026-09-19 17:22 UTCEG score recompute
  24. 2026-09-19 17:22 UTCGHSA enrichment
  25. 2026-09-19 06:02 UTCEG score recompute
Show 42 more
  1. 2026-09-19 06:02 UTCGHSA enrichment
  2. 2026-09-18 19:28 UTCEPSS rescore
  3. 2026-09-18 18:43 UTCGHSA enrichment
  4. 2026-09-18 07:23 UTCGHSA enrichment
  5. 2026-09-17 20:04 UTCEG score recompute
  6. 2026-09-17 20:04 UTCGHSA enrichment
  7. 2026-09-17 06:00 UTCGHSA enrichment
  8. 2026-09-16 18:38 UTCEG score recompute
  9. 2026-09-16 18:38 UTCGHSA enrichment
  10. 2026-09-16 14:08 UTCEPSS rescore
  11. 2026-09-16 07:19 UTCEG score recompute
  12. 2026-09-16 07:19 UTCGHSA enrichment
  13. 2026-09-16 05:15 UTCEPSS rescore
  14. 2026-09-15 19:59 UTCGHSA enrichment
  15. 2026-09-15 08:39 UTCEG score recompute
  16. 2026-09-15 08:39 UTCGHSA enrichment
  17. 2026-09-15 03:12 UTCEPSS rescore
  18. 2026-09-15 03:12 UTCEPSS rescore
  19. 2026-09-14 21:19 UTCGHSA enrichment
  20. 2026-09-14 09:59 UTCGHSA enrichment
  21. 2026-09-13 22:37 UTCEG score recompute
  22. 2026-09-13 22:37 UTCGHSA enrichment
  23. 2026-09-13 11:18 UTCGHSA enrichment
  24. 2026-09-12 23:58 UTCEG score recompute
  25. 2026-09-12 23:58 UTCGHSA enrichment
  26. 2026-09-12 12:38 UTCGHSA enrichment
  27. 2026-09-12 01:18 UTCEG score recompute
  28. 2026-09-12 01:18 UTCGHSA enrichment
  29. 2026-09-11 14:53 UTCEPSS rescore
  30. 2026-09-11 14:53 UTCEPSS rescore
  31. 2026-09-11 13:58 UTCEG score recompute
  32. 2026-09-11 13:58 UTCGHSA enrichment
  33. 2026-09-11 02:38 UTCEG score recompute
  34. 2026-09-11 02:38 UTCGHSA enrichment
  35. 2026-09-10 15:18 UTCGHSA enrichment
  36. 2026-09-10 14:20 UTCGHSA enrichment
  37. 2026-09-10 13:20 UTCEG score recompute▲ 7.20
  38. 2026-09-10 13:20 UTCGHSA enrichment
  39. 2026-09-10 13:20 UTCMITRE cvelistV5CVSS v3 → 7.2 · severity → HIGH
  40. 2026-09-10 07:35 UTCNVD update
  41. 2026-09-10 06:30 UTCEG score recompute
  42. 2026-09-10 06:29 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-81431?
CVE-2026-81431 is a high vulnerability published on September 10, 2026. The Registration Form for WooCommerce WordPress plugin before 1.1.3 does not validate that the form referenced during registration is a legitimate registration form, reading the permitted-role allow-list from an arbitrary attacker-controlled post instead. A user able to create a post (Contributor…
When was CVE-2026-81431 disclosed?
CVE-2026-81431 was first published in the National Vulnerability Database on September 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-81431 actively exploited?
CVE-2026-81431 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 62.7% of all scored CVEs.
What is the CVSS score of CVE-2026-81431?
CVE-2026-81431 has a CVSS v3.1 base score of 7.2 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-81431?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-81431, 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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