CVE-2026-3688

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-07-08. a secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: None knownExposed: 0

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

The WCFM Membership – WooCommerce Memberships for Multivendor Marketplace plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.11.10. This is due to the 'wcfmvm_membership_change' AJAX action not validating user permission to modify other users. This makes it possible for authenticated attackers, with vendor level access and above, to change any user's role to 'wcfm_vendor' by changing their membership plan.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
33%
KEV
Not listed

Published

July 8, 2026

Last Modified

July 8, 2026

References (2)

Vendor Advisories for CVE-2026-3688(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 24× in last 7d / 109× 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 162 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-3688?
CVE-2026-3688 is a high vulnerability published on July 8, 2026. The WCFM Membership – WooCommerce Memberships for Multivendor Marketplace plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.11.10. This is due to the 'wcfmvmmembershipchange' AJAX action not validating user permission to modify other…
When was CVE-2026-3688 disclosed?
CVE-2026-3688 was first published in the National Vulnerability Database on July 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-3688 actively exploited?
CVE-2026-3688 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 66.9% of all scored CVEs.
What is the CVSS score of CVE-2026-3688?
CVE-2026-3688 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-3688?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-3688, 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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