CVE-2024-6412

HTML Forms – Simple WordPress Forms Plugin <= 1.3.33 - Cross-Site Request Forgery

2024-07-10 00:00
Bob Matyas

Strategic Overview

Status
Patched in 1.3.34
Affected Plugin
HTML Forms – Simple WordPress Forms Plugin
Affected Version
<= 1.3.33
CVSS
4.3Medium
Weakness type
CWE-352 · Cross-Site Request Forgery (CSRF)
CVE
CVE-2024-6412
View all HTML Forms – Simple WordPress Forms Plugin vulnerabilities

At a glance

CVE-2024-6412 is a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the HTML Forms WordPress plugin, affecting versions <= 1.3.33. 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 1.3.34; sites on affected versions should update now. Disclosed July 2024, reported by Bob Matyas.

Vulnerability Overview

The HTML Forms – Simple WordPress Forms Plugin plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.3.33. This is due to missing or incorrect nonce validation on the process_bulk_action() function. This makes it possible for unauthenticated attackers to perform bulk actions like deleting forms 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)

HTML Forms <= 1.3.33 carries this weakness at process_bulk_action(), and reaching it 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 HTML Forms the fix is 1.3.34: builds <= 1.3.33 are affected, anything from 1.3.34 onward is not.

Remediation

Update to version 1.3.34, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to HTML Forms: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: HTML Forms 1.3.34 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2024-6412https://www.wordfence.com/threat-intel/vulnerabilities/id/d1f9a46c-5702-448a-b97b-3e2ba107737ahttps://nvd.nist.gov/vuln/detail/CVE-2024-6412

Related records

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