High severity · published Aug 13, 2026
CVE-2026-66441
WordPress MultiVendorX plugin <= 5.0.10 - Broken Access Control vulnerability
7.5
CVSS
0.4%
EPSS
No
On KEV
Description
Unauthenticated Broken Access Control in MultiVendorX <= 5.0.10 versions.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MU
MultiVendorX · MultiVendorX
through 5.0.10 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-66441
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-66441
patchstack.com
https://patchstack.com/database/wordpress/plugin/dc-woocommerce-multi-vendor/vulnerability/wordpress-multivendorx-plugin-5-0-10-broken-access-control-vulnerability?_s_id=cve
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