CVE-2026-13171

HIGHPre-NVD 8.28.2—
EchelonGraph scoreHIGH confidence

Score 8.2 from GitHub Security Advisory (severity: HIGH) published 2026-08-12. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
8.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.2Exploit: Elevated riskExposed: 0

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

The Eventin WordPress plugin before 4.1.20 does not perform an authorization check on its waiting-list registration handler, allowing unauthenticated users to create WordPress user accounts for arbitrary email addresses and inject order records.

CVSS v3
8.2
EG Score
8.2(high)
EG Risk
68(Attend)
EG Risk 68/100SSVC: Attend

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
Severity82% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
15%
KEV
Not listed

Published

August 12, 2026

Last Modified

August 12, 2026

Advisory Details (1)

Auto-updated Aug 12, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Eventin < 4.1.20 – Unauthenticated Account Creation via Waiting List Endpoint | CVE 2026-13171 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/90240025-4dca-4bdb-9698-b63f4c60f413/

Vendor Advisories for CVE-2026-13171(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 27× in last 7d / 40× 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. 2026-08-20 22:55 UTCEPSS rescore
  2. 2026-08-20 21:31 UTCGHSA enrichment
  3. 2026-08-20 09:27 UTCGHSA enrichment
  4. 2026-08-19 21:24 UTCEG score recompute
  5. 2026-08-19 21:24 UTCGHSA enrichment
  6. 2026-08-19 17:03 UTCEPSS rescore
  7. 2026-08-19 09:10 UTCGHSA enrichment
  8. 2026-08-18 21:07 UTCEG score recompute
  9. 2026-08-18 21:07 UTCGHSA enrichment
  10. 2026-08-18 13:48 UTCEPSS rescore
  11. 2026-08-18 09:01 UTCGHSA enrichment
  12. 2026-08-17 20:57 UTCEG score recompute
  13. 2026-08-17 20:57 UTCGHSA enrichment
  14. 2026-08-17 08:53 UTCGHSA enrichment
  15. 2026-08-16 20:50 UTCEG score recompute
  16. 2026-08-16 20:50 UTCGHSA enrichment
  17. 2026-08-16 14:56 UTCEPSS rescore
  18. 2026-08-16 08:46 UTCEG score recompute
  19. 2026-08-16 08:46 UTCGHSA enrichment
  20. 2026-08-16 02:14 UTCEPSS rescore
  21. 2026-08-15 20:43 UTCGHSA enrichment
  22. 2026-08-15 08:39 UTCEG score recompute
  23. 2026-08-15 08:39 UTCGHSA enrichment
  24. 2026-08-15 01:30 UTCEPSS rescore
  25. 2026-08-14 20:35 UTCGHSA enrichment
Show 15 more
  1. 2026-08-14 08:32 UTCEG score recompute
  2. 2026-08-14 08:32 UTCGHSA enrichment
  3. 2026-08-13 22:00 UTCEPSS rescore
  4. 2026-08-13 20:28 UTCGHSA enrichment
  5. 2026-08-13 08:25 UTCEG score recompute
  6. 2026-08-13 08:25 UTCGHSA enrichment
  7. 2026-08-12 20:21 UTCEG score recompute
  8. 2026-08-12 20:21 UTCGHSA enrichment
  9. 2026-08-12 19:46 UTCEG score recompute▲ 8.20
  10. 2026-08-12 19:46 UTCGHSA enrichment
  11. 2026-08-12 19:45 UTCMITRE cvelistV5CVSS v3 → 8.2 · severity → HIGH
  12. 2026-08-12 13:50 UTCEPSS rescore
  13. 2026-08-12 06:18 UTCNVD update
  14. 2026-08-12 06:06 UTCEG score recompute
  15. 2026-08-12 06:03 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-13171?
CVE-2026-13171 is a high vulnerability published on August 12, 2026. The Eventin WordPress plugin before 4.1.20 does not perform an authorization check on its waiting-list registration handler, allowing unauthenticated users to create WordPress user accounts for arbitrary email addresses and inject order records.
When was CVE-2026-13171 disclosed?
CVE-2026-13171 was first published in the National Vulnerability Database on August 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13171 actively exploited?
CVE-2026-13171 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 85.3% of all scored CVEs.
What is the CVSS score of CVE-2026-13171?
CVE-2026-13171 has a CVSS v3.1 base score of 8.2 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-13171?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13171, 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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