CVE-2026-27366

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM 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
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 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(medium)
EG Risk
34(Track)
EG Risk 34/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
19%
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 22× in last 7d / 89× 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.

Showing the most recent 100 of 113 total refreshes for this CVE.

  1. 2026-07-31 15:22 UTCGHSA enrichment
  2. 2026-07-31 03:15 UTCEG score recompute
  3. 2026-07-31 03:15 UTCGHSA enrichment
  4. 2026-07-30 16:27 UTCEPSS rescore
  5. 2026-07-30 14:06 UTCEG score recompute
  6. 2026-07-30 14:06 UTCGHSA enrichment
  7. 2026-07-30 01:30 UTCEPSS rescore
  8. 2026-07-30 00:51 UTCGHSA enrichment
  9. 2026-07-29 09:26 UTCGHSA enrichment
  10. 2026-07-28 21:20 UTCEG score recompute
  11. 2026-07-28 21:20 UTCGHSA enrichment
  12. 2026-07-28 15:36 UTCEPSS rescore
  13. 2026-07-28 05:42 UTCGHSA enrichment
  14. 2026-07-27 17:24 UTCEG score recompute
  15. 2026-07-27 17:24 UTCGHSA enrichment
  16. 2026-07-27 03:15 UTCGHSA enrichment
  17. 2026-07-26 15:08 UTCEG score recompute
  18. 2026-07-26 15:08 UTCGHSA enrichment
  19. 2026-07-26 14:54 UTCEPSS rescore
  20. 2026-07-26 14:54 UTCEPSS rescore
  21. 2026-07-25 14:18 UTCEPSS rescore
  22. 2026-07-25 14:17 UTCEPSS rescore
  23. 2026-07-24 14:17 UTCEPSS rescore
  24. 2026-07-23 14:18 UTCEPSS rescore
  25. 2026-07-23 14:18 UTCEPSS rescore
Show 75 more
  1. 2026-07-23 03:08 UTCEG score recompute
  2. 2026-07-22 14:08 UTCEPSS rescore
  3. 2026-07-22 14:08 UTCEPSS rescore
  4. 2026-07-21 15:24 UTCEPSS rescore
  5. 2026-07-21 15:24 UTCEPSS rescore
  6. 2026-07-20 17:08 UTCEPSS rescore
  7. 2026-07-20 17:08 UTCEPSS rescore
  8. 2026-07-19 14:31 UTCEPSS rescore
  9. 2026-07-19 14:31 UTCEPSS rescore
  10. 2026-07-19 02:29 UTCEPSS rescore
  11. 2026-07-18 10:04 UTCEPSS rescore
  12. 2026-07-18 10:04 UTCEPSS rescore
  13. 2026-07-16 20:43 UTCGHSA enrichment
  14. 2026-07-16 17:03 UTCEPSS rescore
  15. 2026-07-16 17:03 UTCEPSS rescore
  16. 2026-07-16 08:38 UTCGHSA enrichment
  17. 2026-07-15 20:33 UTCGHSA enrichment
  18. 2026-07-15 16:57 UTCEPSS rescore
  19. 2026-07-15 16:57 UTCEPSS rescore
  20. 2026-07-15 08:27 UTCGHSA enrichment
  21. 2026-07-15 02:00 UTCEPSS rescore
  22. 2026-07-15 02:00 UTCEPSS rescore
  23. 2026-07-14 20:20 UTCGHSA enrichment
  24. 2026-07-14 08:13 UTCGHSA enrichment
  25. 2026-07-13 22:30 UTCEPSS rescore
  26. 2026-07-13 19:44 UTCGHSA enrichment
  27. 2026-07-13 07:39 UTCGHSA enrichment
  28. 2026-07-13 06:13 UTCEPSS rescore
  29. 2026-07-13 06:13 UTCEPSS rescore
  30. 2026-07-12 19:34 UTCGHSA enrichment
  31. 2026-07-12 07:29 UTCGHSA enrichment
  32. 2026-07-12 05:46 UTCEPSS rescore
  33. 2026-07-11 19:24 UTCGHSA enrichment
  34. 2026-07-11 08:27 UTCEPSS rescore
  35. 2026-07-11 07:19 UTCGHSA enrichment
  36. 2026-07-10 19:14 UTCGHSA enrichment
  37. 2026-07-10 07:08 UTCGHSA enrichment
  38. 2026-07-09 19:10 UTCEPSS rescore
  39. 2026-07-09 18:58 UTCGHSA enrichment
  40. 2026-07-09 06:52 UTCGHSA enrichment
  41. 2026-07-08 18:45 UTCGHSA enrichment
  42. 2026-07-08 15:15 UTCEPSS rescore
  43. 2026-07-08 15:15 UTCEPSS rescore
  44. 2026-07-08 06:37 UTCGHSA enrichment
  45. 2026-07-07 18:32 UTCGHSA enrichment
  46. 2026-07-07 13:46 UTCEPSS rescore
  47. 2026-07-07 06:26 UTCGHSA enrichment
  48. 2026-07-06 18:19 UTCGHSA enrichment
  49. 2026-07-06 16:27 UTCEPSS rescore
  50. 2026-07-06 16:27 UTCEPSS rescore
  51. 2026-07-06 06:12 UTCGHSA enrichment
  52. 2026-07-06 02:23 UTCEPSS rescore
  53. 2026-07-06 02:23 UTCEPSS rescore
  54. 2026-07-05 18:02 UTCGHSA enrichment
  55. 2026-07-05 05:57 UTCGHSA enrichment
  56. 2026-07-05 02:30 UTCEPSS rescore
  57. 2026-07-04 17:50 UTCGHSA enrichment
  58. 2026-07-04 06:31 UTCEPSS rescore
  59. 2026-07-04 06:31 UTCEPSS rescore
  60. 2026-07-04 05:41 UTCGHSA enrichment
  61. 2026-07-03 17:34 UTCGHSA enrichment
  62. 2026-07-03 05:29 UTCGHSA enrichment
  63. 2026-07-02 17:24 UTCGHSA enrichment
  64. 2026-07-02 05:18 UTCGHSA enrichment
  65. 2026-07-01 17:13 UTCGHSA enrichment
  66. 2026-07-01 15:06 UTCEPSS rescore
  67. 2026-07-01 15:06 UTCEPSS rescore
  68. 2026-07-01 05:07 UTCGHSA enrichment
  69. 2026-06-30 23:22 UTCEPSS rescore
  70. 2026-06-30 23:22 UTCEPSS rescore
  71. 2026-06-30 17:00 UTCGHSA enrichment
  72. 2026-06-30 04:54 UTCGHSA enrichment
  73. 2026-06-29 16:34 UTCGHSA enrichment
  74. 2026-06-29 14:06 UTCEPSS rescore
  75. 2026-06-29 04:28 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 0% probability of exploitation in the next 30 days, which ranks it in the top 80.6% of all scored CVEs.
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.

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