CVE-2026-27366

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-25. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.5Exploit: NoneExposed: 0

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

Unauthenticated Broken Access Control in MainWP Child <= 6.1.1 versions.

CVSS v3
7.5
EG Score
7.5(high)
EPSS
12.9%
KEV
Not listed

Published

June 25, 2026

Last Modified

June 29, 2026

Advisory Details (1)

Auto-updated Jun 29, 2026
No patch confirmed yet.
generic

Broken Access Control in WordPress MainWP Child Plugin - Patchstack

https://patchstack.com/database/wordpress/plugin/mainwp-child/vulnerability/wordpress-mainwp-child-plugin-6-1-1-broken-access-control-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-27366(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 39× in last 7d / 63× 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. 2026-07-06 18:19 UTCEG score recompute
  2. 2026-07-06 18:19 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 06:13 UTCEG score recompute
  6. 2026-07-06 06:12 UTCGHSA enrichment
  7. 2026-07-06 02:23 UTCEPSS rescore
  8. 2026-07-06 02:23 UTCEPSS rescore
  9. 2026-07-05 18:02 UTCEG score recompute
  10. 2026-07-05 18:02 UTCGHSA enrichment
  11. 2026-07-05 05:57 UTCEG score recompute
  12. 2026-07-05 05:57 UTCGHSA enrichment
  13. 2026-07-05 02:30 UTCEPSS rescore
  14. 2026-07-04 17:50 UTCEG score recompute
  15. 2026-07-04 17:50 UTCGHSA enrichment
  16. 2026-07-04 06:31 UTCEPSS rescore
  17. 2026-07-04 06:31 UTCEPSS rescore
  18. 2026-07-04 05:41 UTCEG score recompute
  19. 2026-07-04 05:41 UTCGHSA enrichment
  20. 2026-07-03 17:35 UTCEG score recompute
  21. 2026-07-03 17:34 UTCGHSA enrichment
  22. 2026-07-03 05:29 UTCEG score recompute
  23. 2026-07-03 05:29 UTCGHSA enrichment
  24. 2026-07-02 17:24 UTCEG score recompute
  25. 2026-07-02 17:24 UTCGHSA enrichment
Show 38 more
  1. 2026-07-02 05:18 UTCEG score recompute
  2. 2026-07-02 05:18 UTCGHSA enrichment
  3. 2026-07-01 17:13 UTCEG score recompute
  4. 2026-07-01 17:13 UTCGHSA enrichment
  5. 2026-07-01 15:06 UTCEPSS rescore
  6. 2026-07-01 15:06 UTCEPSS rescore
  7. 2026-07-01 05:07 UTCEG score recompute
  8. 2026-07-01 05:07 UTCGHSA enrichment
  9. 2026-06-30 23:22 UTCEPSS rescore
  10. 2026-06-30 23:22 UTCEPSS rescore
  11. 2026-06-30 17:00 UTCEG score recompute
  12. 2026-06-30 17:00 UTCGHSA enrichment
  13. 2026-06-30 04:54 UTCEG score recompute
  14. 2026-06-30 04:54 UTCGHSA enrichment
  15. 2026-06-29 16:34 UTCEG score recompute
  16. 2026-06-29 16:34 UTCGHSA enrichment
  17. 2026-06-29 14:06 UTCEPSS rescore
  18. 2026-06-29 04:29 UTCEG score recompute
  19. 2026-06-29 04:28 UTCGHSA enrichment
  20. 2026-06-28 16:22 UTCEG score recompute
  21. 2026-06-28 16:22 UTCGHSA enrichment
  22. 2026-06-28 14:07 UTCEPSS rescore
  23. 2026-06-28 14:07 UTCEPSS rescore
  24. 2026-06-28 04:56 UTCEPSS rescore
  25. 2026-06-28 04:56 UTCEPSS rescore
  26. 2026-06-28 04:17 UTCEG score recompute
  27. 2026-06-28 04:16 UTCGHSA enrichment
  28. 2026-06-27 16:11 UTCEG score recompute
  29. 2026-06-27 16:11 UTCGHSA enrichment
  30. 2026-06-27 04:05 UTCEG score recompute
  31. 2026-06-27 04:05 UTCGHSA enrichment
  32. 2026-06-27 03:08 UTCEPSS rescore
  33. 2026-06-26 16:00 UTCEG score recompute
  34. 2026-06-26 16:00 UTCGHSA enrichment
  35. 2026-06-26 03:55 UTCEG score recompute
  36. 2026-06-26 03:55 UTCGHSA enrichment
  37. 2026-06-25 15:50 UTCEG score recompute
  38. 2026-06-25 15:50 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-27366?
CVE-2026-27366 is a high vulnerability published on June 25, 2026. Unauthenticated Broken Access Control in MainWP Child <= 6.1.1 versions.
When was CVE-2026-27366 disclosed?
CVE-2026-27366 was first published in the National Vulnerability Database on June 25, 2026, with the most recent update on June 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-27366 actively exploited?
CVE-2026-27366 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 12.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-27366?
CVE-2026-27366 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-27366?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-27366, 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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