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
Trending — 4 sources updated this week
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)
EPSS
12.8%
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 21× in last 7d / 21× 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. 2026-07-12 19:58 UTCEG score recompute
  2. 2026-07-12 19:57 UTCGHSA enrichment
  3. 2026-07-12 06:59 UTCEG score recompute
  4. 2026-07-12 06:59 UTCGHSA enrichment
  5. 2026-07-12 05:46 UTCEPSS rescore
  6. 2026-07-11 18:00 UTCEG score recompute
  7. 2026-07-11 18:00 UTCGHSA enrichment
  8. 2026-07-11 08:27 UTCEPSS rescore
  9. 2026-07-11 05:01 UTCEG score recompute
  10. 2026-07-11 05:01 UTCGHSA enrichment
  11. 2026-07-10 16:03 UTCEG score recompute
  12. 2026-07-10 16:02 UTCGHSA enrichment
  13. 2026-07-10 03:04 UTCEG score recompute
  14. 2026-07-10 03:04 UTCGHSA enrichment
  15. 2026-07-09 19:10 UTCEPSS rescore
  16. 2026-07-09 14:05 UTCEG score recompute
  17. 2026-07-09 14:05 UTCGHSA enrichment
  18. 2026-07-09 01:07 UTCEG score recompute
  19. 2026-07-09 01:07 UTCGHSA enrichment
  20. 2026-07-08 12:07 UTCEG score recompute
  21. 2026-07-08 12:05 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

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 12.8% 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

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.

Start Free Scan →Browse All CVEs