CVE-2021-24266

The Plus Addons for Elementor Page Builder Lite < 2.0.6 - Authenticated Stored Cross-Site Scripting

2021-04-13 00:00
Ram

Strategic Overview

Status
Patched in 2.0.6
Affected Plugin
The Plus Addons for Elementor – Addons for Elementor, Page Templates, Widgets, Mega Menu, WooCommerce
Affected Version
< 2.0.6
CVSS
5.4Medium
Weakness type
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE
CVE-2021-24266
View all The Plus Addons for Elementor – Addons for Elementor, Page Templates, Widgets, Mega Menu, WooCommerce vulnerabilities

At a glance

CVE-2021-24266 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the The Plus Addons for Elementor WordPress plugin, affecting versions < 2.0.6. It carries a CVSS score of 5.4 (reachable over the network; low attack complexity). Exploitation requires an authenticated account. The issue is fixed in version 2.0.6; sites on affected versions should update now. Disclosed April 2021, reported by Ram.

Vulnerability Overview

The “The Plus Addons for Elementor Page Builder Lite” WordPress Plugin before 2.0.6 has four widgets that are vulnerable to stored Cross-Site Scripting (XSS) by lower-privileged users such as contributors, all via a similar method.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed.

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Reaching this weakness in The Plus Addons for Elementor < 2.0.6 takes any authenticated account. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.

Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For The Plus Addons for Elementor the fix is 2.0.6: builds < 2.0.6 are affected, anything from 2.0.6 onward is not.

Remediation

Update to version 2.0.6, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to The Plus Addons for Elementor: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: The Plus Addons for Elementor 2.0.6 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2021-24266https://www.wordfence.com/threat-intel/vulnerabilities/id/7707ca04-e136-4d4b-869b-cd270359991ehttps://nvd.nist.gov/vuln/detail/CVE-2021-24266

Related records

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