CVE-2024-0830

Comments Extra Fields For Post,Pages and CPT <= 5.0 - Cross-Site Request Forgery

2024-02-26 00:00
Francesco Carlucci

Strategic Overview

Status
Patched in 5.1
Affected Version
<= 5.0
CVSS
4.3Medium
Weakness type
CWE-352 · Cross-Site Request Forgery (CSRF)
CVE
CVE-2024-0830
View all Comments Extra Fields For Post,Pages and CPT vulnerabilities

At a glance

CVE-2024-0830 is a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the Comments Extra Fields For Post,Pages and CPT WordPress plugin, affecting versions <= 5.0. 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 5.1; sites on affected versions should update now. Disclosed February 2024, reported by Francesco Carlucci.

Vulnerability Overview

The Comments Extra Fields For Post,Pages and CPT plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 5.0. This is due to missing or incorrect nonce validation on several ajax actions. This makes it possible for unauthenticated attackers to invoke those actions via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. As a result, they may modify comment form fields and update plugin 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, and no privileges on the target site.

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

Reaching this weakness in Comments Extra Fields For Post,Pages and CPT <= 5.0 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 Comments Extra Fields For Post,Pages and CPT the fix is 5.1: builds <= 5.0 are affected, anything from 5.1 onward is not.

Remediation

Update to version 5.1, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Comments Extra Fields For Post,Pages and CPT: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Comments Extra Fields For Post,Pages and CPT 5.1 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

Related records

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