CVE-2026-104913: File Upload RCE (CVSS 8.8)

Description

The Interactive Real Estate – Floor Plan & Building Visualizer plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 2.6.0 via the extract_zip_data function. This is due to missing capability check, nonce verification, and file extension or MIME type validation before copying attacker-supplied ZIP members to the uploads directory. This makes it possible for authenticated attackers, with subscriber-level access and above, to upload files that may be executable, which makes remote code execution possible. This vulnerability is only exploitable on sites where the plugin's Freemius Premium license or trial is active, as the sole gate in the handler is a site-level license check rather than a per-user capability check.

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CVSS v3.1 Score

8.8

HIGH

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

EPSS — Exploit Prediction

0.0052

Probability of exploitation

0.44%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-434 Unrestricted Upload

References

Other References

https://plugins.trac.wordpress.org/browser/interactive-real-estate/tags/2.5.5/includes/controllers/DataImportExport.php#L149 https://plugins.trac.wordpress.org/browser/interactive-real-estate/tags/2.5.5/includes/controllers/DataImportExport.php#L496 https://plugins.trac.wordpress.org/browser/interactive-real-estate/tags/2.5.5/includes/controllers/DataImportExport.php#L888 https://plugins.trac.wordpress.org/changeset?reponame=&old=3783603%40interactive-real-estate&new=3783603%40interactive-real-estate https://www.wordfence.com/threat-intel/vulnerabilities/id/b5aeab8b-86f7-4453-9070-632dceaf137d?source=cve

Frequently Asked Questions

What is CVE-2026-104913? +

The Interactive Real Estate – Floor Plan & Building Visualizer plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 2.6.0 via the extract_zip_data function. This is due to missing capability check, nonce verification, and file extension or MIME type validation before copying attacker-supplied ZIP members to the uploads directory. This makes it possible for authenticated attackers, with subscriber-level access and above, to upload files that may be executable, which makes remote code execution possible. This vulnerability is only exploitable on sites where the plugin's Freemius Premium license or trial is active, as the sole gate in the handler is a site-level license check rather than a per-user capability check. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-104913? +

CVE-2026-104913 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0052, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-104913? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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