CVE-2026-8608

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2026-06-06. a secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: None knownExposed: 0

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

The Event Monster – Event Management, Events Calendar, Tickets plugin for WordPress is vulnerable to Insufficient Verification of Data Authenticity in versions up to, and including, 2.1.0. This is due to the capture_payment() AJAX handler (registered via wp_ajax_nopriv_em_capture_payment) trusting client-supplied payment data — including transaction ID, amount, and payment status — without performing any server-side verification against the PayPal API or any other payment gateway, and without nonce or capability checks. This makes it possible for unauthenticated attackers to forge payment records, mark bookings as Completed, and obtain confirmation emails containing valid QR code tickets without making any actual payment.

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: 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
Severity53% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
6%
KEV
Not listed

Published

June 5, 2026

Last Modified

July 23, 2026

References (5)

Vendor Advisories for CVE-2026-8608(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 13× in last 7d / 52× 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. 2026-07-27 14:14 UTCEPSS rescore
  2. 2026-07-27 08:38 UTCEG score recompute
  3. 2026-07-27 08:38 UTCGHSA enrichment
  4. 2026-07-26 14:54 UTCEPSS rescore
  5. 2026-07-26 07:20 UTCEG score recompute
  6. 2026-07-26 07:19 UTCGHSA enrichment
  7. 2026-07-25 14:18 UTCEPSS rescore
  8. 2026-07-24 14:18 UTCEPSS rescore
  9. 2026-07-23 14:18 UTCEPSS rescore
  10. 2026-07-23 03:23 UTCEG score recompute
  11. 2026-07-22 14:08 UTCEPSS rescore
  12. 2026-07-21 15:25 UTCEPSS rescore
  13. 2026-07-21 15:25 UTCEPSS rescore
  14. 2026-07-20 17:08 UTCEPSS rescore
  15. 2026-07-19 14:31 UTCEPSS rescore
  16. 2026-07-19 02:29 UTCEPSS rescore
  17. 2026-07-18 10:04 UTCEPSS rescore
  18. 2026-07-16 17:03 UTCEPSS rescore
  19. 2026-07-15 22:37 UTCGHSA enrichment
  20. 2026-07-15 16:57 UTCEPSS rescore
  21. 2026-07-15 02:00 UTCEPSS rescore
  22. 2026-07-14 02:57 UTCGHSA enrichment
  23. 2026-07-13 06:13 UTCEPSS rescore
  24. 2026-07-12 05:46 UTCEPSS rescore
  25. 2026-07-11 21:56 UTCGHSA enrichment
Show 72 more
  1. 2026-07-10 21:54 UTCGHSA enrichment
  2. 2026-07-09 19:10 UTCEPSS rescore
  3. 2026-07-09 05:22 UTCGHSA enrichment
  4. 2026-07-08 15:16 UTCEPSS rescore
  5. 2026-07-08 03:55 UTCGHSA enrichment
  6. 2026-07-07 13:46 UTCEPSS rescore
  7. 2026-07-06 16:27 UTCEPSS rescore
  8. 2026-07-06 16:27 UTCEPSS rescore
  9. 2026-07-06 02:23 UTCEPSS rescore
  10. 2026-07-06 02:23 UTCEPSS rescore
  11. 2026-07-05 21:56 UTCGHSA enrichment
  12. 2026-07-05 02:31 UTCEPSS rescore
  13. 2026-07-05 02:30 UTCEPSS rescore
  14. 2026-07-04 21:51 UTCGHSA enrichment
  15. 2026-07-04 06:31 UTCEPSS rescore
  16. 2026-07-04 06:31 UTCEPSS rescore
  17. 2026-07-03 21:36 UTCGHSA enrichment
  18. 2026-07-02 21:39 UTCGHSA enrichment
  19. 2026-07-01 21:42 UTCGHSA enrichment
  20. 2026-07-01 15:07 UTCEPSS rescore
  21. 2026-06-30 23:22 UTCEPSS rescore
  22. 2026-06-30 21:38 UTCGHSA enrichment
  23. 2026-06-29 21:08 UTCGHSA enrichment
  24. 2026-06-29 14:06 UTCEPSS rescore
  25. 2026-06-28 21:12 UTCGHSA enrichment
  26. 2026-06-28 14:07 UTCEPSS rescore
  27. 2026-06-28 04:56 UTCEPSS rescore
  28. 2026-06-27 21:16 UTCGHSA enrichment
  29. 2026-06-27 03:08 UTCEPSS rescore
  30. 2026-06-26 21:19 UTCGHSA enrichment
  31. 2026-06-25 21:23 UTCGHSA enrichment
  32. 2026-06-25 13:50 UTCEPSS rescore
  33. 2026-06-24 21:27 UTCGHSA enrichment
  34. 2026-06-24 14:05 UTCEPSS rescore
  35. 2026-06-23 21:33 UTCEPSS rescore
  36. 2026-06-23 17:18 UTCGHSA enrichment
  37. 2026-06-22 14:25 UTCEPSS rescore
  38. 2026-06-22 06:23 UTCGHSA enrichment
  39. 2026-06-21 14:56 UTCEPSS rescore
  40. 2026-06-21 03:07 UTCGHSA enrichment
  41. 2026-06-21 01:59 UTCEPSS rescore
  42. 2026-06-19 23:37 UTCGHSA enrichment
  43. 2026-06-19 19:26 UTCEPSS rescore
  44. 2026-06-18 23:40 UTCGHSA enrichment
  45. 2026-06-18 17:52 UTCEPSS rescore
  46. 2026-06-17 23:08 UTCGHSA enrichment
  47. 2026-06-17 17:53 UTCEPSS rescore
  48. 2026-06-16 23:12 UTCGHSA enrichment
  49. 2026-06-16 17:53 UTCEPSS rescore
  50. 2026-06-15 23:13 UTCGHSA enrichment
  51. 2026-06-15 17:49 UTCEPSS rescore
  52. 2026-06-15 17:49 UTCEPSS rescore
  53. 2026-06-14 23:18 UTCEPSS rescore
  54. 2026-06-14 23:16 UTCGHSA enrichment
  55. 2026-06-13 23:19 UTCGHSA enrichment
  56. 2026-06-13 23:00 UTCEPSS rescore
  57. 2026-06-12 23:23 UTCGHSA enrichment
  58. 2026-06-12 23:12 UTCEPSS rescore
  59. 2026-06-12 23:12 UTCEPSS rescore
  60. 2026-06-11 23:26 UTCGHSA enrichment
  61. 2026-06-11 14:00 UTCEPSS rescore
  62. 2026-06-10 23:30 UTCGHSA enrichment
  63. 2026-06-10 22:19 UTCEPSS rescore
  64. 2026-06-10 13:22 UTCEPSS rescore
  65. 2026-06-09 23:34 UTCGHSA enrichment
  66. 2026-06-08 23:37 UTCGHSA enrichment
  67. 2026-06-08 14:17 UTCEPSS rescore
  68. 2026-06-07 23:41 UTCGHSA enrichment
  69. 2026-06-07 15:25 UTCEPSS rescore
  70. 2026-06-06 23:45 UTCGHSA enrichment
  71. 2026-06-06 13:47 UTCEPSS rescore
  72. 2026-06-05 23:48 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-8608?
CVE-2026-8608 is a medium vulnerability published on June 5, 2026. The Event Monster – Event Management, Events Calendar, Tickets plugin for WordPress is vulnerable to Insufficient Verification of Data Authenticity in versions up to, and including, 2.1.0. This is due to the capturepayment() AJAX handler (registered via wpajaxnoprivemcapturepayment) trusting…
When was CVE-2026-8608 disclosed?
CVE-2026-8608 was first published in the National Vulnerability Database on June 5, 2026, with the most recent update on July 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8608 actively exploited?
CVE-2026-8608 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 93.9% of all scored CVEs.
What is the CVSS score of CVE-2026-8608?
CVE-2026-8608 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-8608?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8608, 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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