Medium severity · published Aug 18, 2026
CVE-2026-66679
WordPress Appointment Hour Booking plugin <= 1.5.91 - Broken Access Control vulnerability
6.5
CVSS
0.4%
EPSS
No
On KEV
Description
Unauthenticated Broken Access Control in Appointment Hour Booking <= 1.5.91 versions.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 29% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AH
Appointment Hour Booking · codepeople
through 1.5.91 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-66679
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-66679
patchstack.com
https://patchstack.com/database/wordpress/plugin/appointment-hour-booking/vulnerability/wordpress-appointment-hour-booking-plugin-1-5-91-broken-access-control-vulnerability?_s_id=cve
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