CVE-2021-24259

Elementor Addon Elements <= 1.11.1 - Stored Cross-Site Scripting

2021-04-13 00:00
Ram

Strategic Overview

Status
Patched in 1.11.2
Affected Plugin
Addon Elements for Elementor (formerly Elementor Addon Elements)
Affected Version
< 1.11.2
CVSS
5.4Medium
Weakness type
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE
CVE-2021-24259
View all Addon Elements for Elementor (formerly Elementor Addon Elements) vulnerabilities

At a glance

CVE-2021-24259 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Addon Elements for Elementor (formerly Elementor Addon Elements) WordPress plugin, affecting versions < 1.11.2. It carries a CVSS score of 5.4 (reachable over the network; low attack complexity). The issue is fixed in version 1.11.2; sites on affected versions should update now. Disclosed April 2021, reported by Ram.

Vulnerability Overview

The “Elementor Addon Elements” WordPress Plugin before 1.11.2 has several 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 Addon Elements for Elementor (formerly Elementor Addon Elements) < 1.11.2 takes a caller who can reach the endpoint. 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 Addon Elements for Elementor (formerly Elementor Addon Elements) the fix is 1.11.2: builds < 1.11.2 are affected, anything from 1.11.2 onward is not.

Remediation

Update to version 1.11.2, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Addon Elements for Elementor (formerly Elementor Addon Elements): WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Addon Elements for Elementor (formerly Elementor Addon Elements) 1.11.2 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2021-24259https://www.wordfence.com/threat-intel/vulnerabilities/id/7c6fe986-df68-4a62-9a43-5632c622b5fchttps://nvd.nist.gov/vuln/detail/CVE-2021-24259

Related records

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