CVE-2024-9872

Online Booking & Scheduling Calendar for WordPress by vcita <= 4.5.1 - Authenticated (Subscriber+) Stored Cross-Site Scripting

2024-12-05 00:00
stealthcopter

Strategic Overview

Status
Patched in 4.5.2
Affected Plugin
Online Booking & Scheduling Calendar for WordPress by vcita
Affected Version
<= 4.5.1
CVSS
5.4Medium
Weakness type
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE
CVE-2024-9872
View all Online Booking & Scheduling Calendar for WordPress by vcita vulnerabilities

At a glance

CVE-2024-9872 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Online Booking & Scheduling Calendar for WordPress by vcita WordPress plugin, affecting versions <= 4.5.1. It carries a CVSS score of 5.4 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 4.5.2; sites on affected versions should update now. Disclosed December 2024, reported by stealthcopter.

Vulnerability Overview

The Online Booking & Scheduling Calendar for WordPress by vcita plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the vcita_save_user_data_callback() function in all versions up to, and including, 4.5.1. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject malicious web scripts and update settings.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed.

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Online Booking & Scheduling Calendar for WordPress by vcita <= 4.5.1 carries this weakness at vcita_save_user_data_callback(), and reaching it takes an account at Subscriber level or above. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.

Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For Online Booking & Scheduling Calendar for WordPress by vcita the fix is 4.5.2: builds <= 4.5.1 are affected, anything from 4.5.2 onward is not.

Remediation

Update to version 4.5.2, or a newer patched version

How does WordSec protect against this?

An attacker needs Subscriber access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Online Booking & Scheduling Calendar for WordPress by vcita 4.5.2 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2024-9872https://www.wordfence.com/threat-intel/vulnerabilities/id/963c2d10-692b-4447-8d0b-7ccc2e533f01https://nvd.nist.gov/vuln/detail/CVE-2024-9872

Related records

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