CVE-2021-24358

The Plus Addons for Elementor Page Builder < 4.1.10 - Open Redirect

2021-05-31 00:00
Nicolas Vidal

Strategic Overview

Status
Patched in 4.1.10
Affected Plugin
The Plus Addons for Elementor Page Builder Pro
Affected Version
< 4.1.10
CVSS
6.1Medium
Weakness type
CWE-601 · URL Redirection to Untrusted Site ('Open Redirect')
CVE
CVE-2021-24358
View all The Plus Addons for Elementor Page Builder Pro vulnerabilities

At a glance

CVE-2021-24358 is a medium-severity URL Redirection to Untrusted Site ('Open Redirect') vulnerability in the The Plus Addons for Elementor Page Builder Pro WordPress plugin, affecting versions < 4.1.10. It carries a CVSS score of 6.1 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 4.1.10; sites on affected versions should update now. Disclosed May 2021, reported by Nicolas Vidal.

Vulnerability Overview

The Plus Addons for Elementor Page Builder WordPress plugin before 4.1.10 did not validate a redirect parameter on a specifically crafted URL before redirecting the user to it, leading to an Open Redirect issue.

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-601: URL Redirection to Untrusted Site ('Open Redirect')

Reaching this weakness in The Plus Addons for Elementor Page Builder Pro < 4.1.10 takes a caller who can reach the endpoint. An open redirect is a page that takes a destination from the request and sends the browser there without checking that the destination belongs to the site.

A link that starts on a trusted domain finishes on an attacker's, which is what makes phishing and consent-screen abuse credible to the person clicking it. For The Plus Addons for Elementor Page Builder Pro the fix is 4.1.10: builds < 4.1.10 are affected, anything from 4.1.10 onward is not.

Remediation

Update to version 4.1.10, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to The Plus Addons for Elementor Page Builder Pro: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: The Plus Addons for Elementor Page Builder Pro 4.1.10 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2021-24358https://www.wordfence.com/threat-intel/vulnerabilities/id/97c921e4-a05d-43db-9fe7-3dac8ea4d249https://nvd.nist.gov/vuln/detail/CVE-2021-24358

Related records

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