High severity · published Aug 13, 2026
CVE-2026-66462
WordPress WooCommerce Appointments plugin <= 5.3.8 - Sensitive Data Exposure vulnerability
7.5
CVSS
0.4%
EPSS
No
On KEV
Description
Unauthenticated Sensitive Data Exposure in WooCommerce Appointments <= 5.3.8 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 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WA
WooCommerce Appointments · BookingWP
through 5.3.8 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-66462
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-66462
patchstack.com
https://patchstack.com/database/wordpress/plugin/woocommerce-appointments/vulnerability/wordpress-woocommerce-appointments-plugin-5-3-8-sensitive-data-exposure-vulnerability?_s_id=cve
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