Various Plugins <= Various Version - Use of Polyfill.io

2024-06-25 00:00
Anonymous

Strategic Overview

Status
Patched in 1.6.24
Affected Plugin
weForms – Easy Drag & Drop Contact Form Builder For WordPress
Affected Version
<= 1.6.23
CVSS
5.3Medium
Weakness type
CWE-348 · Use of Less Trusted Source
CVE
CVE pending
View all weForms – Easy Drag & Drop Contact Form Builder For WordPress vulnerabilities

At a glance

This record tracks a medium-severity Use of Less Trusted Source vulnerability in the weForms WordPress plugin, affecting versions <= 1.6.23. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 1.6.24; sites on affected versions should update now. Disclosed June 2024.

Vulnerability Overview

Multiple plugins for WordPress are vulnerable to malicious redirection in various versions. This is due to the use of Polyfill.io. Polyfill.io is a JavaScript library used to streamline delivery of content across older browsers and was taken over by malicious threat actors that used the service to redirect victims to malicious websites. While many WordPress plugins utilize Polyfill.io, not all of them may have been delivering malicious content. Regardless, it is recommended to update to a version of the plugin where Polyfill is no longer used or manually remove the use of Polyfill.io from the plugin.

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, and no interaction from a victim user.

CWE-348: Use of Less Trusted Source

The product has two different sources of the same data or information, but it uses the source that has less support for verification, is less trusted, or is less resistant to attack.

Remediation

Update to version 1.6.24, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to weForms: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: weForms 1.6.24 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.wordfence.com/threat-intel/vulnerabilities/id/379a5016-3968-4b28-8d6e-0f517e419016

Related records

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