CVE-2026-16236

high

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.

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/4a64f840-8570-4f98-8b72-27bee1607fc2?source=cve

https://plugins.trac.wordpress.org/browser/real-estate-listing-realtyna-wpl/tags/5.3.0/views/backend/addon_idx/wpl_ajax.php#L238

https://plugins.trac.wordpress.org/browser/real-estate-listing-realtyna-wpl/tags/5.3.0/libraries/idx/idx_property_mapper.php#L392

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/api/init.php#L8

Details

Source: Mitre, NVD

Published: 2026-07-31

Updated: 2026-07-31

Risk Information

CVSS v2

Base Score: 9

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.8

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

Severity: High