CVE-2023-25037

Booking Calendar Contact Form <= 1.2.34 - Missing Authorization to Authenticated (Subscriber+) Feedback Form Submission

2023-02-06 00:00
István Márton

Strategic Overview

Status
Patched in 1.2.35
Affected Plugin
Booking Calendar Contact Form
Affected Version
<= 1.2.34
CVSS
4.3Medium
Weakness type
CWE-862 · Missing Authorization
CVE
CVE-2023-25037
View all Booking Calendar Contact Form vulnerabilities

At a glance

CVE-2023-25037 is a medium-severity Missing Authorization vulnerability in the Booking Calendar Contact Form WordPress plugin, affecting versions <= 1.2.34. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 1.2.35; sites on affected versions should update now. Disclosed February 2023, reported by István Márton.

Vulnerability Overview

The Booking Calendar Contact Form plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the cpdexbccf_feedback function called via the cpdexbccf_feedback AJAX action in versions up to, and including, 1.2.34. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to perform an unauthorized feedback form submission.

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 interaction from a victim user.

CWE-862: Missing Authorization

Reaching this weakness in Booking Calendar Contact Form <= 1.2.34 takes an account at Subscriber level or above. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Booking Calendar Contact Form the fix is 1.2.35: builds <= 1.2.34 are affected, anything from 1.2.35 onward is not.

Remediation

Update to version 1.2.35, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Booking Calendar Contact Form 1.2.35 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-25037https://www.wordfence.com/threat-intel/vulnerabilities/id/0563d2f0-fb29-4030-8d01-c257dda78241https://nvd.nist.gov/vuln/detail/CVE-2023-25037

Related records

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