CVE-2026-3688

HIGHPre-NVD 8.18.1
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

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, GitHub Security Advisory, a secondary CVSS source
8.1EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 8.1Exploit: None knownExposed services: Not assessed

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

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
8.1HIGHmedium confidence
EG Risk
37
EG Risk 37/100

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 (value × EchelonGraph’s weight)
Severity81% × 45%
The EG Score, 8.1 of 10.
Exploitation0.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
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
0.4%
EPSS %ILE
32nd
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

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 none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

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 10× in last 7d / 40× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 99 of 226 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 100 is merged into the row it repeats. The 127 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-11 19:53 UTCEG score recompute
  2. 2026-10-11 17:06 UTCEG score recompute
  3. 2026-10-11 14:33 UTCEG score recompute
  4. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  5. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  6. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  7. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  8. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  9. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  10. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  11. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  12. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  13. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  14. 2026-10-01 16:20 UTCEG score recompute
  15. 2026-10-01 16:20 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  16. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  17. 2026-09-28 13:26 UTCEG score recompute
  18. 2026-09-28 13:26 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  19. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  20. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  21. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  22. 2026-09-24 11:53 UTCEG score recompute
  23. 2026-09-24 11:53 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  24. 2026-09-23 06:13 UTCEG score recompute
  25. 2026-09-23 06:13 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
Show 74 more
  1. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  2. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  3. 2026-09-18 05:46 UTCEG score recompute
  4. 2026-09-18 05:46 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  5. 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  6. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  7. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  8. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  9. 2026-09-13 23:51 UTCEG score recompute
  10. 2026-09-13 23:51 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  11. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  12. 2026-09-13 08:27 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  13. 2026-09-12 16:45 UTCEG score recompute
  14. 2026-09-12 16:45 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  15. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  16. 2026-09-12 03:38 UTCEG score recompute
  17. 2026-09-12 03:38 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  18. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  19. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  20. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  21. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  22. 2026-09-06 14:05 UTCEG score recompute
  23. 2026-09-06 14:05 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  24. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  25. 2026-09-05 22:50 UTCEG score recompute
  26. 2026-09-05 22:50 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  27. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  28. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  29. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  30. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  31. 2026-08-30 20:36 UTCEG score recompute
  32. 2026-08-30 20:36 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  33. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  34. 2026-08-30 07:38 UTCEG score recompute
  35. 2026-08-30 07:38 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  36. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  37. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  38. 2026-08-27 21:52 UTCEG score recompute
  39. 2026-08-27 21:52 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  40. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  41. 2026-08-27 01:43 UTCEG score recompute
  42. 2026-08-27 01:43 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  43. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  44. 2026-08-26 08:29 UTCEG score recompute
  45. 2026-08-26 08:29 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  46. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  47. 2026-08-25 13:30 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  48. 2026-08-24 23:46 UTCEG score recompute
  49. 2026-08-24 23:46 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  50. 2026-08-24 10:48 UTCEG score recompute
  51. 2026-08-24 10:48 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  52. 2026-08-23 21:45 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  53. 2026-08-23 08:47 UTCEG score recompute
  54. 2026-08-23 08:47 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  55. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  56. 2026-08-22 19:44 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  57. 2026-08-22 06:46 UTCEG score recompute
  58. 2026-08-22 06:46 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  59. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  60. 2026-08-21 17:48 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  61. 2026-08-21 04:50 UTCEG score recompute
  62. 2026-08-21 04:50 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  63. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  64. 2026-08-20 15:51 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  65. 2026-08-20 02:53 UTCEG score recompute
  66. 2026-08-20 02:53 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  67. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  68. 2026-08-19 13:45 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  69. 2026-08-19 00:48 UTCEG score recompute
  70. 2026-08-19 00:47 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  71. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  72. 2026-08-18 11:34 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1
  73. 2026-08-17 22:30 UTCEG score recompute
  74. 2026-08-17 22:30 UTCGHSA enrichmentGHSA-2jfc-5xjv-8mv7 · GitHub severity HIGH · GitHub CVSS 8.1

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-3688?
CVE-2026-3688 is a high-severity vulnerability; its CVE record was 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 the CVE record for CVE-2026-3688 published?
The CVE record for CVE-2026-3688 was published on July 8, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 8, 2026; the record at its source may have been updated since.
Is CVE-2026-3688 actively exploited?
CVE-2026-3688 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (32nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-3688?
CVE-2026-3688 has a CVSS base score of 8.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-3688?
No fix for CVE-2026-3688 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-2026-3688 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-3688

Explore →

Is Your Infrastructure Affected by CVE-2026-3688?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs