// For flags

CVE-2021-36855

WordPress Booking Ultra Pro plugin <= 1.1.4 - Cross-Site Scripting (XSS) via Cross-Site Request Forgery (CSRF) vulnerability

Severity Score

6.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Cross-Site Scripting (XSS) via Cross-Site Request Forgery (CSRF) vulnerability in Booking Ultra Pro plugin <= 1.1.4 at WordPress.

Una vulnerabilidad de tipo Cross-Site Scripting (XSS) por medio de Cross-Site Request Forgery (CSRF) en el plugin Booking Ultra Pro versiones anteriores a 1.1.4 incluyéndola, en WordPress

The Booking Ultra Pro plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.1.6. This is due to missing or incorrect nonce validation on most AJAX actions. This makes it possible for unauthenticated attackers to inject malicious JavaScript, obtain information about staff users, change opening times and more, via forged request granted they can trick a site administrator into performing an action such as clicking on a link.

*Credits: Vulnerability discovered by Ngo Van Thien (Patchstack Alliance)
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
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
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-07-19 CVE Reserved
  • 2022-09-29 CVE Published
  • 2024-09-17 CVE Updated
  • 2024-12-17 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
  • 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
Bookingultrapro
Search vendor "Bookingultrapro"
 Booking Ultra Pro Appointments Booking Calendar
Search vendor "Bookingultrapro" for product "Booking Ultra Pro Appointments Booking Calendar"
 <= 1.1.4
Search vendor "Bookingultrapro" for product "Booking Ultra Pro Appointments Booking Calendar" and version " <= 1.1.4"
wordpress
Affected