CVE-2026-81583

MEDIUMPre-NVD 5.45.4—
EchelonGraph scoreHIGH confidence

Score 5.4 from GitHub Security Advisory published 2026-09-02. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
5.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.4Exploit: None knownExposed: 0

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

The My Login WordPress plugin before 7.2.0 does not enforce the network's registration setting when processing site signups on multisite installations, allowing users with a subscriber account, and unauthenticated users on some networks, to create new sites and be granted administrator over them.

CVSS v3
5.4
EG Score
5.4(high)
EG Risk
24(Track)
EG Risk 24/100SSVC: 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
Severity54% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
20%
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

Theme My Login 7.0 – 7.1.15 – Subscriber+ Unauthorised Multisite Site Creation and Privilege Escalation | CVE 2026-81583 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/6ced93ee-5629-42a4-9103-44cf99265bd2/

Vendor Advisories for CVE-2026-81583(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 18× in last 7d / 65× 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 14:04 UTCEPSS rescore
  2. 2026-09-24 11:05 UTCEG score recompute
  3. 2026-09-24 11:05 UTCGHSA enrichment
  4. 2026-09-23 17:54 UTCEPSS rescore
  5. 2026-09-23 10:23 UTCEG score recompute
  6. 2026-09-23 10:23 UTCGHSA enrichment
  7. 2026-09-22 16:01 UTCEPSS rescore
  8. 2026-09-22 09:38 UTCEG score recompute
  9. 2026-09-22 09:38 UTCGHSA enrichment
  10. 2026-09-21 21:09 UTCEPSS rescore
  11. 2026-09-21 08:54 UTCEG score recompute
  12. 2026-09-21 08:54 UTCGHSA enrichment
  13. 2026-09-20 20:16 UTCEPSS rescore
  14. 2026-09-20 08:11 UTCEG score recompute
  15. 2026-09-20 08:11 UTCGHSA enrichment
  16. 2026-09-19 06:39 UTCEG score recompute
  17. 2026-09-19 06:39 UTCGHSA enrichment
  18. 2026-09-18 19:28 UTCEPSS rescore
  19. 2026-09-18 05:56 UTCEG score recompute
  20. 2026-09-18 05:56 UTCGHSA enrichment
  21. 2026-09-17 05:13 UTCEG score recompute
  22. 2026-09-17 05:13 UTCGHSA enrichment
  23. 2026-09-16 14:08 UTCEPSS rescore
  24. 2026-09-16 05:15 UTCEPSS rescore
  25. 2026-09-16 04:30 UTCGHSA enrichment
Show 40 more
  1. 2026-09-15 03:32 UTCEG score recompute
  2. 2026-09-15 03:32 UTCGHSA enrichment
  3. 2026-09-15 03:12 UTCEPSS rescore
  4. 2026-09-15 03:12 UTCEPSS rescore
  5. 2026-09-14 02:49 UTCEG score recompute
  6. 2026-09-14 02:49 UTCGHSA enrichment
  7. 2026-09-13 02:07 UTCEG score recompute
  8. 2026-09-13 02:07 UTCGHSA enrichment
  9. 2026-09-12 01:24 UTCEG score recompute
  10. 2026-09-12 01:24 UTCGHSA enrichment
  11. 2026-09-11 14:53 UTCEPSS rescore
  12. 2026-09-11 14:53 UTCEPSS rescore
  13. 2026-09-11 00:41 UTCEG score recompute
  14. 2026-09-11 00:41 UTCGHSA enrichment
  15. 2026-09-09 23:58 UTCGHSA enrichment
  16. 2026-09-08 23:15 UTCEG score recompute
  17. 2026-09-08 23:15 UTCGHSA enrichment
  18. 2026-09-08 22:01 UTCEPSS rescore
  19. 2026-09-07 20:54 UTCEG score recompute
  20. 2026-09-07 20:54 UTCGHSA enrichment
  21. 2026-09-06 20:12 UTCEG score recompute
  22. 2026-09-06 20:12 UTCGHSA enrichment
  23. 2026-09-06 13:48 UTCEPSS rescore
  24. 2026-09-05 19:29 UTCEG score recompute
  25. 2026-09-05 19:29 UTCGHSA enrichment
  26. 2026-09-05 15:31 UTCEPSS rescore
  27. 2026-09-04 18:47 UTCEG score recompute
  28. 2026-09-04 18:47 UTCGHSA enrichment
  29. 2026-09-04 05:07 UTCEPSS rescore
  30. 2026-09-03 18:04 UTCGHSA enrichment
  31. 2026-09-03 12:07 UTCEG score recompute
  32. 2026-09-03 12:07 UTCGHSA enrichment
  33. 2026-09-02 14:12 UTCEPSS rescore
  34. 2026-09-02 11:23 UTCGHSA enrichment
  35. 2026-09-02 10:50 UTCEG score recompute▲ 5.40
  36. 2026-09-02 10:50 UTCGHSA enrichment
  37. 2026-09-02 10:48 UTCMITRE cvelistV5CVSS v3 → 5.4 · severity → MEDIUM
  38. 2026-09-02 06:26 UTCNVD update
  39. 2026-09-02 06:06 UTCEG score recompute
  40. 2026-09-02 06:05 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-81583?
CVE-2026-81583 is a medium vulnerability published on September 2, 2026. The My Login WordPress plugin before 7.2.0 does not enforce the network's registration setting when processing site signups on multisite installations, allowing users with a subscriber account, and unauthenticated users on some networks, to create new sites and be granted administrator over them.
When was CVE-2026-81583 disclosed?
CVE-2026-81583 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-2026-81583 actively exploited?
CVE-2026-81583 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 80.2% of all scored CVEs.
What is the CVSS score of CVE-2026-81583?
CVE-2026-81583 has a CVSS v3.1 base score of 5.4 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-81583?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-81583, 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

Explore the affected products and dependency analysis for CVE-2026-81583

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