CVE-2026-16746 MultiVendorX < 5.0.11 - Store Owner+ Cross-Store Commission Data Disclosure via commissions REST Endpoint
A vendor can read other vendors' commission and financial data due to missing ownership verification in the REST API.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-16746?
CVE-2026-16746 is a low-severity missing authorization vulnerability in Unknown MultiVendorX, published on 5 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
The MultiVendorX WordPress plugin before 5.0.11 does not verify that the requested store belongs to the current user in one of its REST API endpoints, allowing any vendor-level user to read other vendors' commission and financial data.
Weakness: CWE-639
Which versions are affected by CVE-2026-16746?
How do I fix CVE-2026-16746?
No fix has been published for CVE-2026-16746 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-16746 being exploited?
There is no known exploitation of CVE-2026-16746 in the wild and no public exploit code.
Sources
Also known as GHSA-xm3p-gghg-f4v9.