CVE-2026-3688

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH 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
8.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.1Exploit: NoneExposed: 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(high)
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
12.1%
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 11× in last 7d / 39× 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. 2026-07-24 14:17 UTCEPSS rescore
  2. 2026-07-24 14:17 UTCEPSS rescore
  3. 2026-07-23 14:18 UTCEPSS rescore
  4. 2026-07-23 14:18 UTCEPSS rescore
  5. 2026-07-23 03:10 UTCEG score recompute
  6. 2026-07-22 14:08 UTCEPSS rescore
  7. 2026-07-21 15:24 UTCEPSS rescore
  8. 2026-07-20 17:08 UTCEPSS rescore
  9. 2026-07-19 14:31 UTCEPSS rescore
  10. 2026-07-19 02:29 UTCEPSS rescore
  11. 2026-07-18 10:04 UTCEPSS rescore
  12. 2026-07-17 03:46 UTCGHSA enrichment
  13. 2026-07-16 17:03 UTCEPSS rescore
  14. 2026-07-16 14:47 UTCGHSA enrichment
  15. 2026-07-16 01:47 UTCGHSA enrichment
  16. 2026-07-15 16:57 UTCEPSS rescore
  17. 2026-07-15 16:57 UTCEPSS rescore
  18. 2026-07-15 12:49 UTCGHSA enrichment
  19. 2026-07-15 02:00 UTCEPSS rescore
  20. 2026-07-14 23:51 UTCGHSA enrichment
  21. 2026-07-14 10:53 UTCGHSA enrichment
  22. 2026-07-13 22:30 UTCEPSS rescore
  23. 2026-07-13 21:54 UTCGHSA enrichment
  24. 2026-07-13 08:56 UTCGHSA enrichment
  25. 2026-07-13 06:13 UTCEPSS rescore
Show 14 more
  1. 2026-07-13 06:13 UTCEPSS rescore
  2. 2026-07-12 19:57 UTCGHSA enrichment
  3. 2026-07-12 06:59 UTCGHSA enrichment
  4. 2026-07-12 05:46 UTCEPSS rescore
  5. 2026-07-11 18:00 UTCGHSA enrichment
  6. 2026-07-11 08:27 UTCEPSS rescore
  7. 2026-07-11 05:01 UTCGHSA enrichment
  8. 2026-07-10 16:02 UTCGHSA enrichment
  9. 2026-07-10 03:04 UTCGHSA enrichment
  10. 2026-07-09 19:10 UTCEPSS rescore
  11. 2026-07-09 14:05 UTCGHSA enrichment
  12. 2026-07-09 01:07 UTCGHSA enrichment
  13. 2026-07-08 12:07 UTCEG score recompute
  14. 2026-07-08 12:05 UTCMITRE cvelistV5first tracked

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 12.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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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