High severity · published Sep 16, 2026
CVE-2026-74926
MultiVendorX 5.0.0 - 5.0.15 - Subscriber+ Arbitrary Store Data and Ownership Overwrite via stores REST Endpoint
7.1
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 27% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MU
MultiVendorX ·
5.0.0 before 5.0.16 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-74926
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-74926
wpscan.com
https://wpscan.com/vulnerability/35ff7d7e-b3fe-4ae2-92cd-a122b8cdd97c/
More from MultiVendorX
7.2
CVE-2026-74925
MultiVendorX 5.0.0 - 5.0.15 - Store Owner+ Privilege Escalation to Administrator
7.2
CVE-2026-16605
MultiVendorX < 5.0.11 - Store Owner+ Cross-Vendor Store Takeover and Deletion via Missing Authorization
5.3
CVE-2026-74927
MultiVendorX 5.0.13 - 5.0.14 - Unauthenticated Vendor PII and Payout Data Disclosure via stores REST Endpoint
2.7
CVE-2026-16746
MultiVendorX < 5.0.11 - Store Owner+ Cross-Store Commission Data Disclosure via commissions REST Endpoint