Checkfront Online Booking System <= 3.6 - Cross-Site Request Forgery
Strategic Overview
- Status
- Patched in 3.7
- Affected Plugin
- Checkfront Online Booking System
- Affected Version
<= 3.6- CVSS
- 4.3Medium
- Weakness type
- CWE-352 · Cross-Site Request Forgery (CSRF)
- CVE
CVE-2023-44146
At a glance
CVE-2023-44146 is a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the Checkfront Online Booking System WordPress plugin, affecting versions <= 3.6. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 3.7; sites on affected versions should update now. Disclosed September 2023, reported by BuShiYue.
Vulnerability Overview
The Checkfront Online Booking System plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.6. This is due to missing nonce validation in the setup.php file. This makes it possible for unauthenticated attackers to update the plugin's setting and inject malicious JavaScript, via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site.
CWE-352: Cross-Site Request Forgery (CSRF)
Reaching this weakness in Checkfront Online Booking System <= 3.6 takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.
An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. For Checkfront Online Booking System the fix is 3.7: builds <= 3.6 are affected, anything from 3.7 onward is not.
Remediation
Update to version 3.7, or a newer patched version
How does WordSec protect against this?
The attempt arrives as an ordinary request to Checkfront Online Booking System: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Checkfront Online Booking System 3.7 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C