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Vulnerability record · CVE-2026-16236 · published 31 July 2026

CVE-2026-16236: Unrestricted file upload vulnerability

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.

8.8 CVSS 3.1 High EPSS 1.2% · top 33.1% CWE-434 · Unrestricted file upload Deferred
8.8CVSS 3.1 base score
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
12 Aug 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

LinkTags
https://plugins.trac.wordpress.org/browser/real-estate-listing-realtyna-wpl/tags/5.3.0/api/init.php#L8
https://plugins.trac.wordpress.org/browser/real-estate-listing-realtyna-wpl/tags/5.3.0/libraries/idx/addon_idxn.php#L562
https://plugins.trac.wordpress.org/browser/real-estate-listing-realtyna-wpl/tags/5.3.0/libraries/idx/idx_property_mapper
https://plugins.trac.wordpress.org/browser/real-estate-listing-realtyna-wpl/tags/5.3.0/views/backend/addon_idx/wpl_ajax.
https://www.wordfence.com/threat-intel/vulnerabilities/id/4a64f840-8570-4f98-8b72-27bee1607fc2?source=cve

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Source: NIST National Vulnerability Database (record CVE-2026-16236), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.