CVE-2026-16236

Realtyna Organic IDX plugin + WPL Real Estate <= 5.3.0 - Authenticated (Subscriber+) Arbitrary File Upload

2026-07-30 16:55
Son Van (mrs0x06)

Strategic Overview

Status
Patched in 5.4.0
Affected Version
<= 5.3.0
CVSS
8.8High
Weakness type
CWE-434 · Unrestricted Upload of File with Dangerous Type
CVE
CVE-2026-16236
View all Realtyna Organic IDX plugin + WPL Real Estate vulnerabilities

At a glance

CVE-2026-16236 is a high-severity Unrestricted Upload of File with Dangerous Type vulnerability in the Realtyna Organic IDX plugin + WPL Real Estate WordPress plugin, affecting versions <= 5.3.0. 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 Subscriber level or above. The issue is fixed in version 5.4.0; sites on affected versions should update now. Disclosed July 2026, reported by Son Van (mrs0x06).

Vulnerability Overview

The Realtyna Organic IDX plugin for WordPress is vulnerable to Arbitrary File Upload in versions up to, and including, 5.3.0. This is due to missing file extension and content validation in the saveLiveImages() function combined with an insufficient authorization check on the get_keys() AJAX handler and a missing authentication check on the REST API import endpoint. This makes it possible for authenticated attackers, with subscriber-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.

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

Realtyna Organic IDX plugin + WPL Real Estate <= 5.3.0 carries this weakness at saveLiveImages(), and reaching it takes an account at Subscriber 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 Realtyna Organic IDX plugin + WPL Real Estate the fix is 5.4.0: builds <= 5.3.0 are affected, anything from 5.4.0 onward is not.

Remediation

Update to version 5.4.0, or a newer patched version

How does WordSec protect against this?

An attacker needs Subscriber 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: Realtyna Organic IDX plugin + WPL Real Estate 5.4.0 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Scanner
  • Alerts

External References

Related records

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