CVE-2023-29425

ShiftController Employee Shift Scheduling <= 4.9.23 - Cross-Site Request Forgery via get

2023-04-06 00:00
Elliot

Strategic Overview

Status
Patched in 4.9.24
Affected Plugin
ShiftController Employee Shift Scheduling
Affected Version
<= 4.9.23
CVSS
5.4Medium
Weakness type
CWE-352 · Cross-Site Request Forgery (CSRF)
CVE
CVE-2023-29425
View all ShiftController Employee Shift Scheduling vulnerabilities

At a glance

CVE-2023-29425 is a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the ShiftController Employee Shift Scheduling WordPress plugin, affecting versions <= 4.9.23. It carries a CVSS score of 5.4 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 4.9.24; sites on affected versions should update now. Disclosed April 2023, reported by Elliot.

Vulnerability Overview

The ShiftController Employee Shift Scheduling plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 4.9.23. This is due to missing or incorrect nonce validation on the get method of the HC3_Post class. This makes it possible for unauthenticated attackers to perform unauthorized actions 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 ShiftController Employee Shift Scheduling <= 4.9.23 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 ShiftController Employee Shift Scheduling the fix is 4.9.24: builds <= 4.9.23 are affected, anything from 4.9.24 onward is not.

Remediation

Update to version 4.9.24, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to ShiftController Employee Shift Scheduling: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: ShiftController Employee Shift Scheduling 4.9.24 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-29425https://www.wordfence.com/threat-intel/vulnerabilities/id/ca058dde-48fd-46f4-b16c-97cdf79578ffhttps://nvd.nist.gov/vuln/detail/CVE-2023-29425

Related records

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