CVE-2022-0327

Master Addons for Elementor <= 1.8.1 - Reflected Cross-Site Scripting

2022-02-21 00:00
Krzysztof Zając

Strategic Overview

Status
Patched in 1.8.5
Affected Plugin
Master Addons for Elementor – Elementor Addons, Widgets, Mega Menu Builder, Popup Builder, Widget Builder & Template Kits
Affected Version
< 1.8.5
CVSS
6.1Medium
Weakness type
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE
CVE-2022-0327
View all Master Addons for Elementor – Elementor Addons, Widgets, Mega Menu Builder, Popup Builder, Widget Builder & Template Kits vulnerabilities

At a glance

CVE-2022-0327 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Master Addons for Elementor WordPress plugin, affecting versions < 1.8.5. 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 1.8.5; sites on affected versions should update now. Disclosed February 2022, reported by Krzysztof Zając.

Vulnerability Overview

The Master Addons for Elementor WordPress plugin before 1.8.5 does not sanitise and escape the error_message parameter before outputting it back in the response of the jltma_restrict_content AJAX action, available to unauthenticated and authenticated users, leading to a Reflected Cross-Site Scripting

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

Reaching this weakness in Master Addons for Elementor < 1.8.5 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 Master Addons for Elementor the fix is 1.8.5: builds < 1.8.5 are affected, anything from 1.8.5 onward is not.

Remediation

Update to version 1.8.5, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Master Addons for Elementor: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Master Addons for Elementor 1.8.5 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2022-0327https://www.wordfence.com/threat-intel/vulnerabilities/id/680b2194-0c5e-4d5c-86d8-4c1e8de378d7https://nvd.nist.gov/vuln/detail/CVE-2022-0327

Related records

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