CVE-2026-17166

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory published 2026-07-29. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: None knownExposed: 0

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

The Event Booking Manager for WooCommerce – Sell Tickets, Event Registration, RSVP & Event Calendar plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 5.3.7. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to modify site-wide payment settings — including WooCommerce payment enablement, cart redirect behavior, login requirements for checkout, confirmation page ID, and confirmed ticket statuses — that govern how all event bookings are processed.

CVSS v3
4.3
EG Score
4.3(medium)
EG Risk
19(Track)
EG Risk 19/100SSVC: 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
Severity43% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
13%
KEV
Not listed

Published

July 29, 2026

Last Modified

July 30, 2026

References (8)

Vendor Advisories for CVE-2026-17166(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 17× in last 7d / 67× 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 122 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-17166?
CVE-2026-17166 is a medium vulnerability published on July 29, 2026. The Event Booking Manager for WooCommerce – Sell Tickets, Event Registration, RSVP & Event Calendar plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 5.3.7. This is due to the plugin not properly verifying that a user is authorized to perform an…
When was CVE-2026-17166 disclosed?
CVE-2026-17166 was first published in the National Vulnerability Database on July 29, 2026, with the most recent update on July 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-17166 actively exploited?
CVE-2026-17166 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 86.7% of all scored CVEs.
What is the CVSS score of CVE-2026-17166?
CVE-2026-17166 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-17166?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-17166, 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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