CVE-2026-81428 WC Vendors < 2.7.2.1 - Vendor+ Cross-Vendor Product and Arbitrary Post Modification via IDOR
Authenticated vendors can modify other vendors' products and arbitrary posts due to missing ownership checks in the WC Vendors plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-81428?
CVE-2026-81428 is a medium-severity missing authorization vulnerability in Unknown WC Vendors, published on 2 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The WC Vendors WordPress plugin before 2.7.2.1 does not verify ownership or the object type of user-supplied IDs when saving product variations, allowing authenticated users with the vendor role to modify product variations belonging to other vendors, and to change the status and title of arbitrary posts, via IDOR.
Weakness: CWE-639
Which versions are affected by CVE-2026-81428?
How do I fix CVE-2026-81428?
No fix has been published for CVE-2026-81428 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-2026-81428 being exploited?
There is no known exploitation of CVE-2026-81428 in the wild and no public exploit code.
Sources
Also known as GHSA-rcrg-g6hp-vjxv.