CVE-2024-5804

Conditional Fields for Contact Form 7 <= 2.4.13 - Cross-Site Request Forgery to Plugin Setting Reset

2024-07-19 00:00
Marco Wotschka

Strategic Overview

Status
Patched in 2.4.14
Affected Version
<= 2.4.13
CVSS
4.3Medium
Weakness type
CWE-352 · Cross-Site Request Forgery (CSRF)
CVE
CVE-2024-5804
View all Conditional Fields for Contact Form 7 vulnerabilities

At a glance

CVE-2024-5804 is a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the Conditional Fields for Contact Form 7 WordPress plugin, affecting versions <= 2.4.13. 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 2.4.14; sites on affected versions should update now. Disclosed July 2024, reported by Marco Wotschka.

Vulnerability Overview

The Conditional Fields for Contact Form 7 plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 2.4.13. This is due to missing or incorrect nonce validation on the wpcf7cf_admin_init function. This makes it possible for unauthenticated attackers to reset the plugin's settings 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 Conditional Fields for Contact Form 7 <= 2.4.13 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 Conditional Fields for Contact Form 7 the fix is 2.4.14: builds <= 2.4.13 are affected, anything from 2.4.14 onward is not.

Remediation

Update to version 2.4.14, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Conditional Fields for Contact Form 7: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Conditional Fields for Contact Form 7 2.4.14 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

Related records

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