CVE-2026-84901

MEDIUMPre-NVD 4.94.9—
EchelonGraph scoreHIGH confidence

Score 4.9 from GitHub Security Advisory published 2026-09-05. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 4.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
4.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.9Exploit: None knownExposed: 0

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

The Eventin WordPress plugin before 4.1.22 does not properly check authorization on several of its event-management REST routes, allowing users with contributor-level access and above to change the site's front-page setting to an event they do not own and to create, edit and delete global event and speaker taxonomy terms they should not be able to manage.

CVSS v3
4.9
EG Score
4.9(high)
EG Risk
22(Track)
EG Risk 22/100SSVC: 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
Severity49% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
24%
KEV
Not listed

Published

September 5, 2026

Last Modified

September 8, 2026

Advisory Details (1)

Auto-updated Sep 6, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Eventin < 4.1.22 – Contributor+ Site Homepage Hijack and Event Taxonomy Manipulation via Missing Authorization | CVE 2026-84901 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/b1906fd4-82ab-435f-bb07-e8f2db402029/

Vendor Advisories for CVE-2026-84901(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 20× in last 7d / 61× 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 19:37 UTCEG score recompute
  2. 2026-09-24 19:37 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-23 21:06 UTCEG score recompute
  5. 2026-09-23 21:06 UTCGHSA enrichment
  6. 2026-09-23 17:54 UTCEPSS rescore
  7. 2026-09-22 22:36 UTCEG score recompute
  8. 2026-09-22 22:36 UTCGHSA enrichment
  9. 2026-09-22 16:01 UTCEPSS rescore
  10. 2026-09-22 00:06 UTCEG score recompute
  11. 2026-09-22 00:06 UTCGHSA enrichment
  12. 2026-09-21 21:09 UTCEPSS rescore
  13. 2026-09-21 01:36 UTCEG score recompute
  14. 2026-09-21 01:36 UTCGHSA enrichment
  15. 2026-09-20 20:16 UTCEPSS rescore
  16. 2026-09-20 03:06 UTCEG score recompute
  17. 2026-09-20 03:05 UTCGHSA enrichment
  18. 2026-09-19 04:34 UTCEG score recompute
  19. 2026-09-19 04:34 UTCGHSA enrichment
  20. 2026-09-18 19:28 UTCEPSS rescore
  21. 2026-09-18 06:03 UTCEG score recompute
  22. 2026-09-18 06:03 UTCGHSA enrichment
  23. 2026-09-17 19:32 UTCEPSS rescore
  24. 2026-09-17 07:32 UTCEG score recompute
  25. 2026-09-17 07:32 UTCGHSA enrichment
Show 36 more
  1. 2026-09-16 14:09 UTCEPSS rescore
  2. 2026-09-16 09:00 UTCEG score recompute
  3. 2026-09-16 09:00 UTCGHSA enrichment
  4. 2026-09-16 05:15 UTCEPSS rescore
  5. 2026-09-15 09:27 UTCEG score recompute
  6. 2026-09-15 09:27 UTCGHSA enrichment
  7. 2026-09-15 03:12 UTCEPSS rescore
  8. 2026-09-15 03:12 UTCEPSS rescore
  9. 2026-09-14 10:57 UTCEG score recompute
  10. 2026-09-14 10:57 UTCGHSA enrichment
  11. 2026-09-13 12:27 UTCEG score recompute
  12. 2026-09-13 12:27 UTCGHSA enrichment
  13. 2026-09-12 13:57 UTCGHSA enrichment
  14. 2026-09-11 15:27 UTCEG score recompute
  15. 2026-09-11 15:27 UTCGHSA enrichment
  16. 2026-09-11 14:53 UTCEPSS rescore
  17. 2026-09-11 14:53 UTCEPSS rescore
  18. 2026-09-10 16:56 UTCEG score recompute
  19. 2026-09-10 16:56 UTCGHSA enrichment
  20. 2026-09-09 18:26 UTCEG score recompute
  21. 2026-09-09 18:26 UTCGHSA enrichment
  22. 2026-09-08 22:01 UTCEPSS rescore
  23. 2026-09-08 19:55 UTCGHSA enrichment
  24. 2026-09-08 08:27 UTCEG score recompute
  25. 2026-09-08 08:27 UTCGHSA enrichment
  26. 2026-09-07 09:57 UTCEG score recompute
  27. 2026-09-07 09:57 UTCGHSA enrichment
  28. 2026-09-06 13:48 UTCEPSS rescore
  29. 2026-09-06 11:22 UTCGHSA enrichment
  30. 2026-09-06 10:45 UTCEG score recompute▲ 4.90
  31. 2026-09-06 10:45 UTCGHSA enrichment
  32. 2026-09-06 10:44 UTCMITRE cvelistV5CVSS v3 → 4.9 · severity → MEDIUM
  33. 2026-09-05 15:31 UTCEPSS rescore
  34. 2026-09-05 07:23 UTCNVD update
  35. 2026-09-05 06:35 UTCEG score recompute
  36. 2026-09-05 06:33 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-84901?
CVE-2026-84901 is a medium vulnerability published on September 5, 2026. The Eventin WordPress plugin before 4.1.22 does not properly check authorization on several of its event-management REST routes, allowing users with contributor-level access and above to change the site's front-page setting to an event they do not own and to create, edit and delete global event and…
When was CVE-2026-84901 disclosed?
CVE-2026-84901 was first published in the National Vulnerability Database on September 5, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-84901 actively exploited?
CVE-2026-84901 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 76.4% of all scored CVEs.
What is the CVSS score of CVE-2026-84901?
CVE-2026-84901 has a CVSS v3.1 base score of 4.9 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-84901?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-84901, 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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