CVE-2023-3295

Unlimited Elements For Elementor (Free Widgets, Addons, Templates) <= 1.5.66 - Authenticated (Contributor+) Arbitrary File Upload

2023-06-16 00:00
Chloe Chamberland

Strategic Overview

Status
Patched in 1.5.67
Affected Plugin
Unlimited Elements For Elementor
Affected Version
<= 1.5.66
CVSS
8.8High
Weakness type
CWE-434 · Unrestricted Upload of File with Dangerous Type
CVE
CVE-2023-3295
View all Unlimited Elements For Elementor vulnerabilities

At a glance

CVE-2023-3295 is a high-severity Unrestricted Upload of File with Dangerous Type vulnerability in the Unlimited Elements For Elementor WordPress plugin, affecting versions <= 1.5.66. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires an authenticated account at Contributor level or above. The issue is fixed in version 1.5.67; sites on affected versions should update now. Disclosed June 2023, reported by Chloe Chamberland.

Vulnerability Overview

The Unlimited Elements For Elementor (Free Widgets, Addons, Templates) for WordPress is vulnerable to arbitrary file uploads due to missing file type validation of files in the file manager functionality in versions up to, and including, 1.5.66 . This makes it possible for authenticated attackers, with contributor-level permissions and above, to upload arbitrary files on the affected site's server which may make remote code execution possible. The issue was partially patched in version 1.5.66 and fully patched in 1.5.67. CVE-2023-31231 appears to be a duplicate of this 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 interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-434: Unrestricted Upload of File with Dangerous Type

Reaching this weakness in Unlimited Elements For Elementor <= 1.5.66 takes an account at Contributor level or above. An unrestricted file upload lets a caller store a file whose type or destination the application does not properly constrain.

If an uploaded file lands anywhere the server will execute, the flaw becomes remote code execution and the site should be treated as fully compromised. For Unlimited Elements For Elementor the fix is 1.5.67: builds <= 1.5.66 are affected, anything from 1.5.67 onward is not.

Remediation

Update to version 1.5.67, or a newer patched version

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: Unlimited Elements For Elementor 1.5.67 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Scanner
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-3295https://www.wordfence.com/threat-intel/vulnerabilities/id/ce1ac711-6026-49ef-b66b-2cc199697942https://nvd.nist.gov/vuln/detail/CVE-2023-3295

Related records

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