CVE-2026-16064

MEDIUMPre-NVD 5.45.4—
EchelonGraph scoreMEDIUM confidence

Score 5.4 from GitHub Security Advisory published 2026-08-02. 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 weekElevated
5.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.4Exploit: Elevated riskExposed services: Not assessed

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

The Event Booking Manager for WooCommerce WordPress plugin before 5.3.7 does not properly verify authorization on the object being modified when quick-editing events, only checking a global capability, allowing users with the Contributor role and above to modify the title and publication status of arbitrary posts and pages on the site, including content they do not own.

CVSS v3
5.4
EG Score
5.4MEDIUMmedium confidence
EG Risk
40
EG Risk 40/100CISA SSVC

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%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.2%
EPSS %ILE
12th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 2, 2026

Last Modified

August 26, 2026

Advisory Details (1)

Auto-updated Aug 3, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Event Booking Manager for WooCommerce < 5.3.7 – Contributor+ Arbitrary Post Modification via mpwem_quick_edit_event | CVE 2026-16064 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/881ba365-b2ce-41e1-92bb-e5fa275f8a06/

Vendor Advisories for CVE-2026-16064(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 14× in last 7d / 58× 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 154 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-16064?
CVE-2026-16064 is a medium vulnerability published on August 2, 2026. The Event Booking Manager for WooCommerce WordPress plugin before 5.3.7 does not properly verify authorization on the object being modified when quick-editing events, only checking a global capability, allowing users with the Contributor role and above to modify the title and publication status of…
When was CVE-2026-16064 disclosed?
CVE-2026-16064 was first published on August 2, 2026, with the most recent update on August 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-16064 actively exploited?
CVE-2026-16064 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (12th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-16064?
CVE-2026-16064 has a CVSS v3.1 base score of 5.4 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-16064?
No fix for CVE-2026-16064 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-16064 are linked in the Vendor Advisories panel on this page.

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