CVE-2023-23724

WordPress Email Marketing Plugin – WP Email Capture <= 3.9.3 - Cross Site Request Forgery

2023-02-15 00:00
yuyudhn

Strategic Overview

Status
Patched in 3.10
Affected Plugin
Email Marketing Plugin – WP Email Capture
Affected Version
<= 3.9.3
CVSS
4.3Medium
Weakness type
CWE-352 · Cross-Site Request Forgery (CSRF)
CVE
CVE-2023-23724
View all Email Marketing Plugin – WP Email Capture vulnerabilities

At a glance

CVE-2023-23724 is a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the Email Marketing Plugin WordPress plugin, affecting versions <= 3.9.3. 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 3.10; sites on affected versions should update now. Disclosed February 2023, reported by yuyudhn.

Vulnerability Overview

The WordPress Email Marketing Plugin – WP Email Capture plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.9.3. This is due to missing nonce validation in the wp_email_capture_options_process() function. This makes it possible for unauthenticated attackers to modify email captures, 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)

Email Marketing Plugin <= 3.9.3 carries this weakness at wp_email_capture_options_process(), 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 Email Marketing Plugin the fix is 3.10: builds <= 3.9.3 are affected, anything from 3.10 onward is not.

Remediation

Update to version 3.10, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Email Marketing Plugin: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Email Marketing Plugin 3.10 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-23724https://www.wordfence.com/threat-intel/vulnerabilities/id/8f052dfc-609d-43ed-a8bb-e30294749d03https://nvd.nist.gov/vuln/detail/CVE-2023-23724

Related records

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