// For flags

CVE-2024-0856

Booking Calendar < 1.3.83 - CSRF appointment scheduling

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

The Appointment Booking Calendar WordPress plugin before 1.3.83 does not have CSRF checks in some places, which could allow attackers to make logged in users perform unwanted actions via CSRF attacks such as adding a booking to the calendar without paying.

The Appointment Booking Calendar plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.3.82. This is due to missing or incorrect nonce validation on the cpabc_appointments.php page. This makes it possible for unauthenticated attackers to perform actions like adding bookings without paying via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

*Credits: Sushil Phuyal, WPScan
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
Poc
Automatable
No
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2024-01-24 CVE Reserved
  • 2024-02-28 CVE Published
  • 2024-03-20 EPSS Updated
  • 2024-08-05 CVE Updated
  • 2024-08-05 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-352: Cross-Site Request Forgery (CSRF)
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Unknown
Search vendor "Unknown"
 Appointment Booking Calendar
Search vendor "Unknown" for product "Appointment Booking Calendar"
 < 1.3.83
Search vendor "Unknown" for product "Appointment Booking Calendar" and version " < 1.3.83"
en
Affected