High severity · published Aug 29, 2026
CVE-2026-76586
BookingPress 1.5.6 - 1.6.2 - Unauthenticated Booking Price Manipulation via PayPal Payment Confirmation
7.5
CVSS
0.4%
EPSS
No
On KEV
Description
The Appointment Booking Calendar Plugin and Scheduling Plugin WordPress plugin before 1.6.3 does not verify the amount actually paid against the server-side price staged for a booking when confirming an online payment, allowing unauthenticated users to have a paid appointment approved for a fraction of its price.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
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
AB
Appointment Booking Calendar Plugin and Scheduling Plugin ·
1.5.6 before 1.6.3 · source: vendor
Affected product
AB
Appointment Booking Calendar Plugin and Scheduling Plugin
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-76586
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-76586
wpscan.com
https://wpscan.com/vulnerability/bc74bc9b-92ce-434e-a21d-34d7525c8600/
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