Auth bypass in Multivendorx

CVE-2026-74926

The MultiVendorX WordPress plugin before 5.0.16 does not verify that a user owns the store they are acting on in one of its REST API routes, allowing any authenticated user, such as a subscriber, to overwrite any store's details and payout settings and to replace the record of who owns it.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L.

EPSS exploit prediction

EPSS: 0.003 (27.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 27.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-74926: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

  • Multivendorx

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-74926?
CVE-2026-74926 is a high-severity vulnerability in Multivendorx, classified under Missing Authorization. CVSS score: 7.1/10. Published 2026-09-16.
How severe is CVE-2026-74926?
High severity. CVSS v3 base score is 7.1 out of 10.