CVE-2021-4332

The Plus Addons for Elementor PRO <= 4.1.9 & The Plus Addons for Elementor <= 2.0.6 - Authenticated (Contributor+) Arbitrary File Read

2021-04-14 00:00
Chloe Chamberland

Strategic Overview

Status
Patched in 2.0.7
Affected Version
2.0.6 – 4.1.9 · 2 branches
CVSS
6.5Medium
Weakness type
CWE-73 · External Control of File Name or Path
CVE
CVE-2021-4332
View all The Plus Addons for Elementor – Addons for Elementor, Page Templates, Widgets, Mega Menu, WooCommerce vulnerabilities

At a glance

CVE-2021-4332 is a medium-severity External Control of File Name or Path vulnerability in the The Plus Addons for Elementor WordPress plugin, affecting versions 2.0.6 – 4.1.9 · 2 branches. It carries a CVSS score of 6.5 (reachable over the network; low attack complexity; high confidentiality impact). Exploitation requires an authenticated account at Contributor level or above. The issue is fixed in version 2.0.7; sites on affected versions should update now. Disclosed April 2021, reported by Chloe Chamberland.

Vulnerability Overview

The Plus Addons for Elementor plugin for WordPress is vulnerable to arbitrary file reads in versions up to, and including 4.1.9 (pro) and 2.0.6 (free). The plugin has a feature to add an "Info Box" to an Elementor created page. This Info Box can include an SVG image for the box. Unfortunately, the plugin used file_get_contents with no verification that the file being supplied was an SVG file, so any user with access to the Elementor page builder, such as contributors, could read arbitrary files on the WordPress installation.

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 interaction from a victim user. A successful exploit has high impact on confidentiality.

CWE-73: External Control of File Name or Path

The product allows user input to control or influence paths or file names that are used in filesystem operations.

Remediation

Update to one of the following versions, or a newer patched version: 2.0.7, 4.1.10

How does WordSec protect against this?

An attacker needs Contributor access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. Classes like this one can leave something behind, so the staged malware scanner is the second half: it looks for dropped files and modified code rather than for the request that created them. None of that substitutes for the fix: The Plus Addons for Elementor 2.0.7 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Scanner
  • Alerts

External References

Related records

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