CVE-2022-45824

Advanced Booking Calendar <= 1.7.1 - Cross Site Request Forgery

2022-12-01 00:00
minhtuanact

Strategic Overview

Status
Unpatched
Affected Plugin
Advanced Booking Calendar
Affected Version
<= 1.7.1
CVSS
8.8High
Weakness type
CWE-352 · Cross-Site Request Forgery (CSRF)
CVE
CVE-2022-45824
View all Advanced Booking Calendar vulnerabilities

At a glance

CVE-2022-45824 is a high-severity Cross-Site Request Forgery (CSRF) vulnerability in the Advanced Booking Calendar WordPress plugin, affecting versions <= 1.7.1. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. No fixed release has been reported yet; treat installations running this software as exposed. Disclosed December 2022, reported by minhtuanact.

Vulnerability Overview

The Advanced Booking Calendar for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.7.1. This is due to missing or incorrect nonce validation on one of its functions. This makes it possible for unauthenticated attackers to invoke this function, via 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. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-352: Cross-Site Request Forgery (CSRF)

Reaching this weakness in Advanced Booking Calendar <= 1.7.1 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. No fixed build of this plugin is recorded for Advanced Booking Calendar yet, so installs running <= 1.7.1 stay exposed until the vendor ships one.

Remediation

No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.

How does WordSec protect against this?

The attempt arrives as an ordinary request to Advanced Booking Calendar: WordSec's web application firewall inspects request payloads before WordPress loads them. No patched version is recorded yet, which is the case where a filtering layer matters most, because there is nothing to update to.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2022-45824https://www.wordfence.com/threat-intel/vulnerabilities/id/46c40aed-1df9-4c20-9058-1ae62864fc9dhttps://nvd.nist.gov/vuln/detail/CVE-2022-45824

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C