CVE-2026-81566

MEDIUMPre-NVD 5.15.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 70% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
5.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.1Exploit: None knownExposed: 0

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

Joomla Extension - joomshaper.com - Missing Access Control in Menu Item Creation in SP Page Builder (Free and Pro) 4.0.0 - 6.9.0 - The add-to-menu routine invoked the com_menus item model's save() method directly. That model does not perform authorisation itself, because the relevant checks reside in the com_menus controller, and the only check applied was core.edit on com_sppagebuilder. Users with no permissions whatsoever on com_menus could therefore create menu items, and because the record identifier was taken from the submitted jform[menuid] field, could also overwrite existing ones. The home flag was read back from the database and preserved, so the site's home menu item could be repointed while remaining the home item.

CVSS v3
5.1
EG Score
5.1(medium)
EG Risk
23(Track)
EG Risk 23/100SSVC: 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
Severity51% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
30%
KEV
Not listed

Published

September 14, 2026

Last Modified

September 16, 2026

Advisory Details (1)

Auto-updated Sep 14, 2026
No patch confirmed yet.
generic

SP Page Builder Pro - Drag and drop page composer for Joomla - JoomShaper

https://www.joomshaper.com/joomla-extensions/sp-page-builder-pro

Vendor Advisories for CVE-2026-81566(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 / 37× 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 04:49 UTCEG score recompute
  2. 2026-09-25 04:49 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-24 03:40 UTCEG score recompute
  5. 2026-09-24 03:40 UTCGHSA enrichment
  6. 2026-09-23 17:54 UTCEPSS rescore
  7. 2026-09-23 02:31 UTCEG score recompute
  8. 2026-09-23 02:31 UTCGHSA enrichment
  9. 2026-09-22 16:01 UTCEPSS rescore
  10. 2026-09-22 01:21 UTCEG score recompute
  11. 2026-09-22 01:21 UTCGHSA enrichment
  12. 2026-09-21 21:09 UTCEPSS rescore
  13. 2026-09-21 00:12 UTCEG score recompute
  14. 2026-09-21 00:12 UTCGHSA enrichment
  15. 2026-09-20 20:16 UTCEPSS rescore
  16. 2026-09-19 23:03 UTCEG score recompute
  17. 2026-09-19 23:03 UTCGHSA enrichment
  18. 2026-09-18 21:54 UTCEG score recompute
  19. 2026-09-18 21:54 UTCGHSA enrichment
  20. 2026-09-18 19:28 UTCEPSS rescore
  21. 2026-09-17 20:46 UTCEG score recompute
  22. 2026-09-17 20:46 UTCGHSA enrichment
  23. 2026-09-16 19:36 UTCEG score recompute
  24. 2026-09-16 19:36 UTCGHSA enrichment
  25. 2026-09-16 14:08 UTCEPSS rescore
Show 12 more
  1. 2026-09-16 06:02 UTCEG score recompute
  2. 2026-09-16 06:02 UTCGHSA enrichment
  3. 2026-09-16 05:15 UTCEPSS rescore
  4. 2026-09-15 04:53 UTCEG score recompute
  5. 2026-09-15 04:52 UTCGHSA enrichment
  6. 2026-09-14 15:21 UTCEG score recompute
  7. 2026-09-14 15:21 UTCGHSA enrichment
  8. 2026-09-14 14:40 UTCEG score recompute
  9. 2026-09-14 14:40 UTCGHSA enrichment
  10. 2026-09-14 11:21 UTCEG score recompute
  11. 2026-09-14 11:05 UTCEG score recompute
  12. 2026-09-14 11:04 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-81566?
CVE-2026-81566 is a medium vulnerability published on September 14, 2026. Joomla Extension - joomshaper.com - Missing Access Control in Menu Item Creation in SP Page Builder (Free and Pro) 4.0.0 - 6.9.0 - The add-to-menu routine invoked the commenus item model's save() method directly. That model does not perform authorisation itself, because the relevant checks reside…
When was CVE-2026-81566 disclosed?
CVE-2026-81566 was first published in the National Vulnerability Database on September 14, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-81566 actively exploited?
CVE-2026-81566 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 69.9% of all scored CVEs.
What is the CVSS score of CVE-2026-81566?
CVE-2026-81566 has a CVSS v3 base score of 5.1 (NVD).
How do I remediate CVE-2026-81566?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-81566, 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-2026-81566

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